Finding the Third Proportional to 142,262.50 and 297,676

Step by Step Solution

1. Step 1: Write the proportion equation
   142,262.50 : 297,676 = 297,676 : x
2. Step 2: Convert to fraction form
   142,262.50/297,676 = 297,676/x
3. Step 3: Cross multiply
   142,262.50x = 297,676 × 297,676
4. Step 4: Simplify right side
   142,262.50x = 88,611,000,976
5. Step 5: Solve for x
   x = 88,611,000,976/142,262.50
6. Step 6: Final answer
   x = 622,869.70