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Finding the Third Proportional to 279,646,107.75 and 420,636,690

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Solution

The third proportional to 279,646,107.75 and 420,636,690 is: 632,711,202.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,646,107.75 : 420,636,690 = 420,636,690 : x
  2. Step 2: Convert to fraction form
    279,646,107.75/420,636,690 = 420,636,690/x
  3. Step 3: Cross multiply
    279,646,107.75x = 420,636,690 × 420,636,690
  4. Step 4: Simplify right side
    279,646,107.75x = 176,935,224,974,156,096
  5. Step 5: Solve for x
    x = 176,935,224,974,156,096/279,646,107.75
  6. Step 6: Final answer
    x = 632,711,202.02

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