Finding the Third Proportional to 865,278 and 1,876,572

Step by Step Solution

1. Step 1: Write the proportion equation
   865,278 : 1,876,572 = 1,876,572 : x
2. Step 2: Convert to fraction form
   865,278/1,876,572 = 1,876,572/x
3. Step 3: Cross multiply
   865,278x = 1,876,572 × 1,876,572
4. Step 4: Simplify right side
   865,278x = 3,521,522,471,184
5. Step 5: Solve for x
   x = 3,521,522,471,184/865,278
6. Step 6: Final answer
   x = 4,069,816.26