Finding the Third Proportional to 416,711.25 and 622,323

Step by Step Solution

1. Step 1: Write the proportion equation
   416,711.25 : 622,323 = 622,323 : x
2. Step 2: Convert to fraction form
   416,711.25/622,323 = 622,323/x
3. Step 3: Cross multiply
   416,711.25x = 622,323 × 622,323
4. Step 4: Simplify right side
   416,711.25x = 387,285,916,329
5. Step 5: Solve for x
   x = 387,285,916,329/416,711.25
6. Step 6: Final answer
   x = 929,386.75