Finding the Third Proportional to 31,143,865.50 and 68,150,119.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,143,865.50 : 68,150,119.50 = 68,150,119.50 : x
2. Step 2: Convert to fraction form
   31,143,865.50/68,150,119.50 = 68,150,119.50/x
3. Step 3: Cross multiply
   31,143,865.50x = 68,150,119.50 × 68,150,119.50
4. Step 4: Simplify right side
   31,143,865.50x = 4,644,438,787,864,280
5. Step 5: Solve for x
   x = 4,644,438,787,864,280/31,143,865.50
6. Step 6: Final answer
   x = 149,128,527.02