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Finding the Third Proportional to 245,622.75 and 390,579.75

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Solution

The third proportional to 245,622.75 and 390,579.75 is: 621,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,622.75 : 390,579.75 = 390,579.75 : x
  2. Step 2: Convert to fraction form
    245,622.75/390,579.75 = 390,579.75/x
  3. Step 3: Cross multiply
    245,622.75x = 390,579.75 × 390,579.75
  4. Step 4: Simplify right side
    245,622.75x = 152,552,541,110.06
  5. Step 5: Solve for x
    x = 152,552,541,110.06/245,622.75
  6. Step 6: Final answer
    x = 621,084.74

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