Finding the Third Proportional to 90,769.50 and 129,654

Step by Step Solution

1. Step 1: Write the proportion equation
   90,769.50 : 129,654 = 129,654 : x
2. Step 2: Convert to fraction form
   90,769.50/129,654 = 129,654/x
3. Step 3: Cross multiply
   90,769.50x = 129,654 × 129,654
4. Step 4: Simplify right side
   90,769.50x = 16,810,159,716
5. Step 5: Solve for x
   x = 16,810,159,716/90,769.50
6. Step 6: Final answer
   x = 185,196.13