Finding the Third Proportional to 871,261 and 1,887,320

Step by Step Solution

1. Step 1: Write the proportion equation
   871,261 : 1,887,320 = 1,887,320 : x
2. Step 2: Convert to fraction form
   871,261/1,887,320 = 1,887,320/x
3. Step 3: Cross multiply
   871,261x = 1,887,320 × 1,887,320
4. Step 4: Simplify right side
   871,261x = 3,561,976,782,400
5. Step 5: Solve for x
   x = 3,561,976,782,400/871,261
6. Step 6: Final answer
   x = 4,088,300.50