Finding the Third Proportional to 569,876 and 879,488

Step by Step Solution

1. Step 1: Write the proportion equation
   569,876 : 879,488 = 879,488 : x
2. Step 2: Convert to fraction form
   569,876/879,488 = 879,488/x
3. Step 3: Cross multiply
   569,876x = 879,488 × 879,488
4. Step 4: Simplify right side
   569,876x = 773,499,142,144
5. Step 5: Solve for x
   x = 773,499,142,144/569,876
6. Step 6: Final answer
   x = 1,357,311.31