Finding the Third Proportional to 85,003.50 and 115,024.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,003.50 : 115,024.50 = 115,024.50 : x
2. Step 2: Convert to fraction form
   85,003.50/115,024.50 = 115,024.50/x
3. Step 3: Cross multiply
   85,003.50x = 115,024.50 × 115,024.50
4. Step 4: Simplify right side
   85,003.50x = 13,230,635,600.25
5. Step 5: Solve for x
   x = 13,230,635,600.25/85,003.50
6. Step 6: Final answer
   x = 155,648.13