Finding the Third Proportional to 172,691,453.25 and 375,640,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,691,453.25 : 375,640,132.50 = 375,640,132.50 : x
2. Step 2: Convert to fraction form
   172,691,453.25/375,640,132.50 = 375,640,132.50/x
3. Step 3: Cross multiply
   172,691,453.25x = 375,640,132.50 × 375,640,132.50
4. Step 4: Simplify right side
   172,691,453.25x = 141,105,509,144,617,552
5. Step 5: Solve for x
   x = 141,105,509,144,617,552/172,691,453.25
6. Step 6: Final answer
   x = 817,096,077.94