Finding the Third Proportional to 152,849 and 247,620

Step by Step Solution

1. Step 1: Write the proportion equation
   152,849 : 247,620 = 247,620 : x
2. Step 2: Convert to fraction form
   152,849/247,620 = 247,620/x
3. Step 3: Cross multiply
   152,849x = 247,620 × 247,620
4. Step 4: Simplify right side
   152,849x = 61,315,664,400
5. Step 5: Solve for x
   x = 61,315,664,400/152,849
6. Step 6: Final answer
   x = 401,151.88