Finding the Third Proportional to 142,264 and 297,679.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,264 : 297,679.50 = 297,679.50 : x
2. Step 2: Convert to fraction form
   142,264/297,679.50 = 297,679.50/x
3. Step 3: Cross multiply
   142,264x = 297,679.50 × 297,679.50
4. Step 4: Simplify right side
   142,264x = 88,613,084,720.25
5. Step 5: Solve for x
   x = 88,613,084,720.25/142,264
6. Step 6: Final answer
   x = 622,877.78