Finding the Third Proportional to 871,256 and 1,887,310

Step by Step Solution

1. Step 1: Write the proportion equation
   871,256 : 1,887,310 = 1,887,310 : x
2. Step 2: Convert to fraction form
   871,256/1,887,310 = 1,887,310/x
3. Step 3: Cross multiply
   871,256x = 1,887,310 × 1,887,310
4. Step 4: Simplify right side
   871,256x = 3,561,939,036,100
5. Step 5: Solve for x
   x = 3,561,939,036,100/871,256
6. Step 6: Final answer
   x = 4,088,280.64