Finding the Third Proportional to 107,128.83 and 169,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,128.83 : 169,492.50 = 169,492.50 : x
2. Step 2: Convert to fraction form
   107,128.83/169,492.50 = 169,492.50/x
3. Step 3: Cross multiply
   107,128.83x = 169,492.50 × 169,492.50
4. Step 4: Simplify right side
   107,128.83x = 28,727,707,556.25
5. Step 5: Solve for x
   x = 28,727,707,556.25/107,128.83
6. Step 6: Final answer
   x = 268,160.38