Finding the Third Proportional to 417,375 and 623,606

Step by Step Solution

1. Step 1: Write the proportion equation
   417,375 : 623,606 = 623,606 : x
2. Step 2: Convert to fraction form
   417,375/623,606 = 623,606/x
3. Step 3: Cross multiply
   417,375x = 623,606 × 623,606
4. Step 4: Simplify right side
   417,375x = 388,884,443,236
5. Step 5: Solve for x
   x = 388,884,443,236/417,375
6. Step 6: Final answer
   x = 931,738.71