Finding the Third Proportional to 115,909.50 and 253,962

Step by Step Solution

1. Step 1: Write the proportion equation
   115,909.50 : 253,962 = 253,962 : x
2. Step 2: Convert to fraction form
   115,909.50/253,962 = 253,962/x
3. Step 3: Cross multiply
   115,909.50x = 253,962 × 253,962
4. Step 4: Simplify right side
   115,909.50x = 64,496,697,444
5. Step 5: Solve for x
   x = 64,496,697,444/115,909.50
6. Step 6: Final answer
   x = 556,440.13