Finding the Third Proportional to 20,158,033.50 and 31,128,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,158,033.50 : 31,128,172.50 = 31,128,172.50 : x
2. Step 2: Convert to fraction form
   20,158,033.50/31,128,172.50 = 31,128,172.50/x
3. Step 3: Cross multiply
   20,158,033.50x = 31,128,172.50 × 31,128,172.50
4. Step 4: Simplify right side
   20,158,033.50x = 968,963,123,189,756.25
5. Step 5: Solve for x
   x = 968,963,123,189,756.25/20,158,033.50
6. Step 6: Final answer
   x = 48,068,335.79