Finding the Third Proportional to 151,422,124 and 328,687,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,422,124 : 328,687,123.50 = 328,687,123.50 : x
2. Step 2: Convert to fraction form
   151,422,124/328,687,123.50 = 328,687,123.50/x
3. Step 3: Cross multiply
   151,422,124x = 328,687,123.50 × 328,687,123.50
4. Step 4: Simplify right side
   151,422,124x = 108,035,225,154,704,256
5. Step 5: Solve for x
   x = 108,035,225,154,704,256/151,422,124
6. Step 6: Final answer
   x = 713,470,543.81