Finding the Third Proportional to 749,664 and 1,068,420

Step by Step Solution

1. Step 1: Write the proportion equation
   749,664 : 1,068,420 = 1,068,420 : x
2. Step 2: Convert to fraction form
   749,664/1,068,420 = 1,068,420/x
3. Step 3: Cross multiply
   749,664x = 1,068,420 × 1,068,420
4. Step 4: Simplify right side
   749,664x = 1,141,521,296,400
5. Step 5: Solve for x
   x = 1,141,521,296,400/749,664
6. Step 6: Final answer
   x = 1,522,710.57