Finding the Third Proportional to 847,128 and 1,817,088

Step by Step Solution

1. Step 1: Write the proportion equation
   847,128 : 1,817,088 = 1,817,088 : x
2. Step 2: Convert to fraction form
   847,128/1,817,088 = 1,817,088/x
3. Step 3: Cross multiply
   847,128x = 1,817,088 × 1,817,088
4. Step 4: Simplify right side
   847,128x = 3,301,808,799,744
5. Step 5: Solve for x
   x = 3,301,808,799,744/847,128
6. Step 6: Final answer
   x = 3,897,650.41