Finding the Third Proportional to 80,748,512.75 and 177,130,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,748,512.75 : 177,130,111.50 = 177,130,111.50 : x
2. Step 2: Convert to fraction form
   80,748,512.75/177,130,111.50 = 177,130,111.50/x
3. Step 3: Cross multiply
   80,748,512.75x = 177,130,111.50 × 177,130,111.50
4. Step 4: Simplify right side
   80,748,512.75x = 31,375,076,400,002,432
5. Step 5: Solve for x
   x = 31,375,076,400,002,432/80,748,512.75
6. Step 6: Final answer
   x = 388,552,994.12