Finding the Third Proportional to 871,328 and 1,887,403

Step by Step Solution

1. Step 1: Write the proportion equation
   871,328 : 1,887,403 = 1,887,403 : x
2. Step 2: Convert to fraction form
   871,328/1,887,403 = 1,887,403/x
3. Step 3: Cross multiply
   871,328x = 1,887,403 × 1,887,403
4. Step 4: Simplify right side
   871,328x = 3,562,290,084,409
5. Step 5: Solve for x
   x = 3,562,290,084,409/871,328
6. Step 6: Final answer
   x = 4,088,345.70