Finding the Third Proportional to 146,614,114.50 and 215,128,320

Step by Step Solution

1. Step 1: Write the proportion equation
   146,614,114.50 : 215,128,320 = 215,128,320 : x
2. Step 2: Convert to fraction form
   146,614,114.50/215,128,320 = 215,128,320/x
3. Step 3: Cross multiply
   146,614,114.50x = 215,128,320 × 215,128,320
4. Step 4: Simplify right side
   146,614,114.50x = 46,280,194,066,022,400
5. Step 5: Solve for x
   x = 46,280,194,066,022,400/146,614,114.50
6. Step 6: Final answer
   x = 315,659,881.89