Finding the Third Proportional to 72,445.50 and 112,311

Step by Step Solution

1. Step 1: Write the proportion equation
   72,445.50 : 112,311 = 112,311 : x
2. Step 2: Convert to fraction form
   72,445.50/112,311 = 112,311/x
3. Step 3: Cross multiply
   72,445.50x = 112,311 × 112,311
4. Step 4: Simplify right side
   72,445.50x = 12,613,760,721
5. Step 5: Solve for x
   x = 12,613,760,721/72,445.50
6. Step 6: Final answer
   x = 174,113.79