Finding the Third Proportional to 871,527 and 1,869,128

Step by Step Solution

1. Step 1: Write the proportion equation
   871,527 : 1,869,128 = 1,869,128 : x
2. Step 2: Convert to fraction form
   871,527/1,869,128 = 1,869,128/x
3. Step 3: Cross multiply
   871,527x = 1,869,128 × 1,869,128
4. Step 4: Simplify right side
   871,527x = 3,493,639,480,384
5. Step 5: Solve for x
   x = 3,493,639,480,384/871,527
6. Step 6: Final answer
   x = 4,008,641.71