Finding the Third Proportional to 39,700.75 and 87,178.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,700.75 : 87,178.25 = 87,178.25 : x
2. Step 2: Convert to fraction form
   39,700.75/87,178.25 = 87,178.25/x
3. Step 3: Cross multiply
   39,700.75x = 87,178.25 × 87,178.25
4. Step 4: Simplify right side
   39,700.75x = 7,600,047,273.06
5. Step 5: Solve for x
   x = 7,600,047,273.06/39,700.75
6. Step 6: Final answer
   x = 191,433.34