Finding the Third Proportional to 39,242.50 and 55,903.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,242.50 : 55,903.75 = 55,903.75 : x
2. Step 2: Convert to fraction form
   39,242.50/55,903.75 = 55,903.75/x
3. Step 3: Cross multiply
   39,242.50x = 55,903.75 × 55,903.75
4. Step 4: Simplify right side
   39,242.50x = 3,125,229,264.06
5. Step 5: Solve for x
   x = 3,125,229,264.06/39,242.50
6. Step 6: Final answer
   x = 79,638.89