Finding the Third Proportional to 112,779 and 157,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,779 : 157,666.50 = 157,666.50 : x
2. Step 2: Convert to fraction form
   112,779/157,666.50 = 157,666.50/x
3. Step 3: Cross multiply
   112,779x = 157,666.50 × 157,666.50
4. Step 4: Simplify right side
   112,779x = 24,858,725,222.25
5. Step 5: Solve for x
   x = 24,858,725,222.25/112,779
6. Step 6: Final answer
   x = 220,419.81