Finding the Third Proportional to 72,429.19 and 112,057.17

Step by Step Solution

1. Step 1: Write the proportion equation
   72,429.19 : 112,057.17 = 112,057.17 : x
2. Step 2: Convert to fraction form
   72,429.19/112,057.17 = 112,057.17/x
3. Step 3: Cross multiply
   72,429.19x = 112,057.17 × 112,057.17
4. Step 4: Simplify right side
   72,429.19x = 12,556,809,768.62
5. Step 5: Solve for x
   x = 12,556,809,768.62/72,429.19
6. Step 6: Final answer
   x = 173,366.71