Finding the Third Proportional to 65,610 and 143,248.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,610 : 143,248.50 = 143,248.50 : x
2. Step 2: Convert to fraction form
   65,610/143,248.50 = 143,248.50/x
3. Step 3: Cross multiply
   65,610x = 143,248.50 × 143,248.50
4. Step 4: Simplify right side
   65,610x = 20,520,132,752.25
5. Step 5: Solve for x
   x = 20,520,132,752.25/65,610
6. Step 6: Final answer
   x = 312,759.23