Finding the Third Proportional to 260,938.81 and 404,034.15

Step by Step Solution

1. Step 1: Write the proportion equation
   260,938.81 : 404,034.15 = 404,034.15 : x
2. Step 2: Convert to fraction form
   260,938.81/404,034.15 = 404,034.15/x
3. Step 3: Cross multiply
   260,938.81x = 404,034.15 × 404,034.15
4. Step 4: Simplify right side
   260,938.81x = 163,243,594,983.97
5. Step 5: Solve for x
   x = 163,243,594,983.97/260,938.81
6. Step 6: Final answer
   x = 625,601.06