Finding the Third Proportional to 525,798 and 858,501

Step by Step Solution

1. Step 1: Write the proportion equation
   525,798 : 858,501 = 858,501 : x
2. Step 2: Convert to fraction form
   525,798/858,501 = 858,501/x
3. Step 3: Cross multiply
   525,798x = 858,501 × 858,501
4. Step 4: Simplify right side
   525,798x = 737,023,967,001
5. Step 5: Solve for x
   x = 737,023,967,001/525,798
6. Step 6: Final answer
   x = 1,401,724.55