Finding the Third Proportional to 142,849 and 297,520

Step by Step Solution

1. Step 1: Write the proportion equation
   142,849 : 297,520 = 297,520 : x
2. Step 2: Convert to fraction form
   142,849/297,520 = 297,520/x
3. Step 3: Cross multiply
   142,849x = 297,520 × 297,520
4. Step 4: Simplify right side
   142,849x = 88,518,150,400
5. Step 5: Solve for x
   x = 88,518,150,400/142,849
6. Step 6: Final answer
   x = 619,662.37