Finding the Third Proportional to 111,708 and 156,260.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111,708 : 156,260.25 = 156,260.25 : x
2. Step 2: Convert to fraction form
   111,708/156,260.25 = 156,260.25/x
3. Step 3: Cross multiply
   111,708x = 156,260.25 × 156,260.25
4. Step 4: Simplify right side
   111,708x = 24,417,265,730.06
5. Step 5: Solve for x
   x = 24,417,265,730.06/111,708
6. Step 6: Final answer
   x = 218,581.17