Finding the Third Proportional to 76,630.50 and 115,050

Step by Step Solution

1. Step 1: Write the proportion equation
   76,630.50 : 115,050 = 115,050 : x
2. Step 2: Convert to fraction form
   76,630.50/115,050 = 115,050/x
3. Step 3: Cross multiply
   76,630.50x = 115,050 × 115,050
4. Step 4: Simplify right side
   76,630.50x = 13,236,502,500
5. Step 5: Solve for x
   x = 13,236,502,500/76,630.50
6. Step 6: Final answer
   x = 172,731.52