Finding the Third Proportional to 569,662 and 858,144

Step by Step Solution

1. Step 1: Write the proportion equation
   569,662 : 858,144 = 858,144 : x
2. Step 2: Convert to fraction form
   569,662/858,144 = 858,144/x
3. Step 3: Cross multiply
   569,662x = 858,144 × 858,144
4. Step 4: Simplify right side
   569,662x = 736,411,124,736
5. Step 5: Solve for x
   x = 736,411,124,736/569,662
6. Step 6: Final answer
   x = 1,292,715.90