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Finding the Third Proportional to 279,646,118 and 420,636,709

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Solution

The third proportional to 279,646,118 and 420,636,709 is: 632,711,235.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,646,118 : 420,636,709 = 420,636,709 : x
  2. Step 2: Convert to fraction form
    279,646,118/420,636,709 = 420,636,709/x
  3. Step 3: Cross multiply
    279,646,118x = 420,636,709 × 420,636,709
  4. Step 4: Simplify right side
    279,646,118x = 176,935,240,958,350,688
  5. Step 5: Solve for x
    x = 176,935,240,958,350,688/279,646,118
  6. Step 6: Final answer
    x = 632,711,235.99

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