Finding the Third Proportional to 31,317.50 and 48,471.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,317.50 : 48,471.50 = 48,471.50 : x
2. Step 2: Convert to fraction form
   31,317.50/48,471.50 = 48,471.50/x
3. Step 3: Cross multiply
   31,317.50x = 48,471.50 × 48,471.50
4. Step 4: Simplify right side
   31,317.50x = 2,349,486,312.25
5. Step 5: Solve for x
   x = 2,349,486,312.25/31,317.50
6. Step 6: Final answer
   x = 75,021.52