Finding the Third Proportional to 253,440 and 342,101.25

Step by Step Solution

1. Step 1: Write the proportion equation
   253,440 : 342,101.25 = 342,101.25 : x
2. Step 2: Convert to fraction form
   253,440/342,101.25 = 342,101.25/x
3. Step 3: Cross multiply
   253,440x = 342,101.25 × 342,101.25
4. Step 4: Simplify right side
   253,440x = 117,033,265,251.56
5. Step 5: Solve for x
   x = 117,033,265,251.56/253,440
6. Step 6: Final answer
   x = 461,778.98