Finding the Third Proportional to 693,600 and 1,490,664

Step by Step Solution

1. Step 1: Write the proportion equation
   693,600 : 1,490,664 = 1,490,664 : x
2. Step 2: Convert to fraction form
   693,600/1,490,664 = 1,490,664/x
3. Step 3: Cross multiply
   693,600x = 1,490,664 × 1,490,664
4. Step 4: Simplify right side
   693,600x = 2,222,079,160,896
5. Step 5: Solve for x
   x = 2,222,079,160,896/693,600
6. Step 6: Final answer
   x = 3,203,689.68