Finding the Third Proportional to 250,020 and 357,268.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,020 : 357,268.50 = 357,268.50 : x
2. Step 2: Convert to fraction form
   250,020/357,268.50 = 357,268.50/x
3. Step 3: Cross multiply
   250,020x = 357,268.50 × 357,268.50
4. Step 4: Simplify right side
   250,020x = 127,640,781,092.25
5. Step 5: Solve for x
   x = 127,640,781,092.25/250,020
6. Step 6: Final answer
   x = 510,522.28