Finding the Third Proportional to 745,640 and 1,143,516

Step by Step Solution

1. Step 1: Write the proportion equation
   745,640 : 1,143,516 = 1,143,516 : x
2. Step 2: Convert to fraction form
   745,640/1,143,516 = 1,143,516/x
3. Step 3: Cross multiply
   745,640x = 1,143,516 × 1,143,516
4. Step 4: Simplify right side
   745,640x = 1,307,628,842,256
5. Step 5: Solve for x
   x = 1,307,628,842,256/745,640
6. Step 6: Final answer
   x = 1,753,699.97