Finding the Third Proportional to 391,056 and 584,850

Step by Step Solution

1. Step 1: Write the proportion equation
   391,056 : 584,850 = 584,850 : x
2. Step 2: Convert to fraction form
   391,056/584,850 = 584,850/x
3. Step 3: Cross multiply
   391,056x = 584,850 × 584,850
4. Step 4: Simplify right side
   391,056x = 342,049,522,500
5. Step 5: Solve for x
   x = 342,049,522,500/391,056
6. Step 6: Final answer
   x = 874,681.69