Finding the Third Proportional to 91,870 and 124,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,870 : 124,680.50 = 124,680.50 : x
2. Step 2: Convert to fraction form
   91,870/124,680.50 = 124,680.50/x
3. Step 3: Cross multiply
   91,870x = 124,680.50 × 124,680.50
4. Step 4: Simplify right side
   91,870x = 15,545,227,080.25
5. Step 5: Solve for x
   x = 15,545,227,080.25/91,870
6. Step 6: Final answer
   x = 169,208.96