Finding the Third Proportional to 72,756 and 112,131

Step by Step Solution

1. Step 1: Write the proportion equation
   72,756 : 112,131 = 112,131 : x
2. Step 2: Convert to fraction form
   72,756/112,131 = 112,131/x
3. Step 3: Cross multiply
   72,756x = 112,131 × 112,131
4. Step 4: Simplify right side
   72,756x = 12,573,361,161
5. Step 5: Solve for x
   x = 12,573,361,161/72,756
6. Step 6: Final answer
   x = 172,815.45