Finding the Third Proportional to 111,731.50 and 157,412

Step by Step Solution

1. Step 1: Write the proportion equation
   111,731.50 : 157,412 = 157,412 : x
2. Step 2: Convert to fraction form
   111,731.50/157,412 = 157,412/x
3. Step 3: Cross multiply
   111,731.50x = 157,412 × 157,412
4. Step 4: Simplify right side
   111,731.50x = 24,778,537,744
5. Step 5: Solve for x
   x = 24,778,537,744/111,731.50
6. Step 6: Final answer
   x = 221,768.59