Finding the Third Proportional to 251,539 and 357,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   251,539 : 357,628.50 = 357,628.50 : x
2. Step 2: Convert to fraction form
   251,539/357,628.50 = 357,628.50/x
3. Step 3: Cross multiply
   251,539x = 357,628.50 × 357,628.50
4. Step 4: Simplify right side
   251,539x = 127,898,144,012.25
5. Step 5: Solve for x
   x = 127,898,144,012.25/251,539
6. Step 6: Final answer
   x = 508,462.48