Finding the Third Proportional to 404,076 and 879,090

Step by Step Solution

1. Step 1: Write the proportion equation
   404,076 : 879,090 = 879,090 : x
2. Step 2: Convert to fraction form
   404,076/879,090 = 879,090/x
3. Step 3: Cross multiply
   404,076x = 879,090 × 879,090
4. Step 4: Simplify right side
   404,076x = 772,799,228,100
5. Step 5: Solve for x
   x = 772,799,228,100/404,076
6. Step 6: Final answer
   x = 1,912,509.60