Finding the Third Proportional to 13,425 and 31,589.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,425 : 31,589.50 = 31,589.50 : x
2. Step 2: Convert to fraction form
   13,425/31,589.50 = 31,589.50/x
3. Step 3: Cross multiply
   13,425x = 31,589.50 × 31,589.50
4. Step 4: Simplify right side
   13,425x = 997,896,510.25
5. Step 5: Solve for x
   x = 997,896,510.25/13,425
6. Step 6: Final answer
   x = 74,331.21