Finding the Third Proportional to 13,390.50 and 31,662.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,390.50 : 31,662.75 = 31,662.75 : x
2. Step 2: Convert to fraction form
   13,390.50/31,662.75 = 31,662.75/x
3. Step 3: Cross multiply
   13,390.50x = 31,662.75 × 31,662.75
4. Step 4: Simplify right side
   13,390.50x = 1,002,529,737.56
5. Step 5: Solve for x
   x = 1,002,529,737.56/13,390.50
6. Step 6: Final answer
   x = 74,868.73