Finding the Third Proportional to 65,479 and 142,952.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,479 : 142,952.50 = 142,952.50 : x
2. Step 2: Convert to fraction form
   65,479/142,952.50 = 142,952.50/x
3. Step 3: Cross multiply
   65,479x = 142,952.50 × 142,952.50
4. Step 4: Simplify right side
   65,479x = 20,435,417,256.25
5. Step 5: Solve for x
   x = 20,435,417,256.25/65,479
6. Step 6: Final answer
   x = 312,091.16