Finding the Third Proportional to 151,422,127.50 and 328,687,131

Step by Step Solution

1. Step 1: Write the proportion equation
   151,422,127.50 : 328,687,131 = 328,687,131 : x
2. Step 2: Convert to fraction form
   151,422,127.50/328,687,131 = 328,687,131/x
3. Step 3: Cross multiply
   151,422,127.50x = 328,687,131 × 328,687,131
4. Step 4: Simplify right side
   151,422,127.50x = 108,035,230,085,011,168
5. Step 5: Solve for x
   x = 108,035,230,085,011,168/151,422,127.50
6. Step 6: Final answer
   x = 713,470,559.88