Finding the Third Proportional to 71,289 and 110,875.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,289 : 110,875.50 = 110,875.50 : x
2. Step 2: Convert to fraction form
   71,289/110,875.50 = 110,875.50/x
3. Step 3: Cross multiply
   71,289x = 110,875.50 × 110,875.50
4. Step 4: Simplify right side
   71,289x = 12,293,376,500.25
5. Step 5: Solve for x
   x = 12,293,376,500.25/71,289
6. Step 6: Final answer
   x = 172,444.23