Finding the Third Proportional to 865,458 and 1,888,380

Step by Step Solution

1. Step 1: Write the proportion equation
   865,458 : 1,888,380 = 1,888,380 : x
2. Step 2: Convert to fraction form
   865,458/1,888,380 = 1,888,380/x
3. Step 3: Cross multiply
   865,458x = 1,888,380 × 1,888,380
4. Step 4: Simplify right side
   865,458x = 3,565,979,024,400
5. Step 5: Solve for x
   x = 3,565,979,024,400/865,458
6. Step 6: Final answer
   x = 4,120,337.47