Finding the Third Proportional to 76,648,061.25 and 168,135,343.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,648,061.25 : 168,135,343.50 = 168,135,343.50 : x
2. Step 2: Convert to fraction form
   76,648,061.25/168,135,343.50 = 168,135,343.50/x
3. Step 3: Cross multiply
   76,648,061.25x = 168,135,343.50 × 168,135,343.50
4. Step 4: Simplify right side
   76,648,061.25x = 28,269,493,733,862,992
5. Step 5: Solve for x
   x = 28,269,493,733,862,992/76,648,061.25
6. Step 6: Final answer
   x = 368,822,032.45