Finding the Third Proportional to 86,665,385.25 and 176,357,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,665,385.25 : 176,357,488.50 = 176,357,488.50 : x
2. Step 2: Convert to fraction form
   86,665,385.25/176,357,488.50 = 176,357,488.50/x
3. Step 3: Cross multiply
   86,665,385.25x = 176,357,488.50 × 176,357,488.50
4. Step 4: Simplify right side
   86,665,385.25x = 31,101,963,750,027,632
5. Step 5: Solve for x
   x = 31,101,963,750,027,632/86,665,385.25
6. Step 6: Final answer
   x = 358,874,118.66