Finding the Third Proportional to 161,798.25 and 253,260

Step by Step Solution

1. Step 1: Write the proportion equation
   161,798.25 : 253,260 = 253,260 : x
2. Step 2: Convert to fraction form
   161,798.25/253,260 = 253,260/x
3. Step 3: Cross multiply
   161,798.25x = 253,260 × 253,260
4. Step 4: Simplify right side
   161,798.25x = 64,140,627,600
5. Step 5: Solve for x
   x = 64,140,627,600/161,798.25
6. Step 6: Final answer
   x = 396,423.49