Finding the Third Proportional to 745,216 and 1,053,456

Step by Step Solution

1. Step 1: Write the proportion equation
   745,216 : 1,053,456 = 1,053,456 : x
2. Step 2: Convert to fraction form
   745,216/1,053,456 = 1,053,456/x
3. Step 3: Cross multiply
   745,216x = 1,053,456 × 1,053,456
4. Step 4: Simplify right side
   745,216x = 1,109,769,543,936
5. Step 5: Solve for x
   x = 1,109,769,543,936/745,216
6. Step 6: Final answer
   x = 1,489,191.78