Finding the Third Proportional to 745,316 and 1,053,603

Step by Step Solution

1. Step 1: Write the proportion equation
   745,316 : 1,053,603 = 1,053,603 : x
2. Step 2: Convert to fraction form
   745,316/1,053,603 = 1,053,603/x
3. Step 3: Cross multiply
   745,316x = 1,053,603 × 1,053,603
4. Step 4: Simplify right side
   745,316x = 1,110,079,281,609
5. Step 5: Solve for x
   x = 1,110,079,281,609/745,316
6. Step 6: Final answer
   x = 1,489,407.56