Finding the Third Proportional to 15,942 and 31,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,942 : 31,486.50 = 31,486.50 : x
2. Step 2: Convert to fraction form
   15,942/31,486.50 = 31,486.50/x
3. Step 3: Cross multiply
   15,942x = 31,486.50 × 31,486.50
4. Step 4: Simplify right side
   15,942x = 991,399,682.25
5. Step 5: Solve for x
   x = 991,399,682.25/15,942
6. Step 6: Final answer
   x = 62,187.91