Finding the Third Proportional to 745,728 and 1,564,320

Step by Step Solution

1. Step 1: Write the proportion equation
   745,728 : 1,564,320 = 1,564,320 : x
2. Step 2: Convert to fraction form
   745,728/1,564,320 = 1,564,320/x
3. Step 3: Cross multiply
   745,728x = 1,564,320 × 1,564,320
4. Step 4: Simplify right side
   745,728x = 2,447,097,062,400
5. Step 5: Solve for x
   x = 2,447,097,062,400/745,728
6. Step 6: Final answer
   x = 3,281,487.44