Finding the Third Proportional to 76,215.75 and 113,221.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,215.75 : 113,221.50 = 113,221.50 : x
2. Step 2: Convert to fraction form
   76,215.75/113,221.50 = 113,221.50/x
3. Step 3: Cross multiply
   76,215.75x = 113,221.50 × 113,221.50
4. Step 4: Simplify right side
   76,215.75x = 12,819,108,062.25
5. Step 5: Solve for x
   x = 12,819,108,062.25/76,215.75
6. Step 6: Final answer
   x = 168,195.00