Finding the Third Proportional to 31,399.88 and 65,008.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,399.88 : 65,008.13 = 65,008.13 : x
2. Step 2: Convert to fraction form
   31,399.88/65,008.13 = 65,008.13/x
3. Step 3: Cross multiply
   31,399.88x = 65,008.13 × 65,008.13
4. Step 4: Simplify right side
   31,399.88x = 4,226,056,316.02
5. Step 5: Solve for x
   x = 4,226,056,316.02/31,399.88
6. Step 6: Final answer
   x = 134,588.32