Finding the Third Proportional to 152,496 and 219,996

Step by Step Solution

1. Step 1: Write the proportion equation
   152,496 : 219,996 = 219,996 : x
2. Step 2: Convert to fraction form
   152,496/219,996 = 219,996/x
3. Step 3: Cross multiply
   152,496x = 219,996 × 219,996
4. Step 4: Simplify right side
   152,496x = 48,398,240,016
5. Step 5: Solve for x
   x = 48,398,240,016/152,496
6. Step 6: Final answer
   x = 317,373.83