Finding the Third Proportional to 35,761.50 and 78,687

Step by Step Solution

1. Step 1: Write the proportion equation
   35,761.50 : 78,687 = 78,687 : x
2. Step 2: Convert to fraction form
   35,761.50/78,687 = 78,687/x
3. Step 3: Cross multiply
   35,761.50x = 78,687 × 78,687
4. Step 4: Simplify right side
   35,761.50x = 6,191,643,969
5. Step 5: Solve for x
   x = 6,191,643,969/35,761.50
6. Step 6: Final answer
   x = 173,137.14