Finding the Third Proportional to 60,439.50 and 91,993.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,439.50 : 91,993.50 = 91,993.50 : x
2. Step 2: Convert to fraction form
   60,439.50/91,993.50 = 91,993.50/x
3. Step 3: Cross multiply
   60,439.50x = 91,993.50 × 91,993.50
4. Step 4: Simplify right side
   60,439.50x = 8,462,804,042.25
5. Step 5: Solve for x
   x = 8,462,804,042.25/60,439.50
6. Step 6: Final answer
   x = 140,021.08