Finding the Third Proportional to 569,659.50 and 858,141

Step by Step Solution

1. Step 1: Write the proportion equation
   569,659.50 : 858,141 = 858,141 : x
2. Step 2: Convert to fraction form
   569,659.50/858,141 = 858,141/x
3. Step 3: Cross multiply
   569,659.50x = 858,141 × 858,141
4. Step 4: Simplify right side
   569,659.50x = 736,405,975,881
5. Step 5: Solve for x
   x = 736,405,975,881/569,659.50
6. Step 6: Final answer
   x = 1,292,712.53