Finding the Third Proportional to 152,508 and 220,014

Step by Step Solution

1. Step 1: Write the proportion equation
   152,508 : 220,014 = 220,014 : x
2. Step 2: Convert to fraction form
   152,508/220,014 = 220,014/x
3. Step 3: Cross multiply
   152,508x = 220,014 × 220,014
4. Step 4: Simplify right side
   152,508x = 48,406,160,196
5. Step 5: Solve for x
   x = 48,406,160,196/152,508
6. Step 6: Final answer
   x = 317,400.79