Finding the Third Proportional to 528,823.50 and 771,086.25

Step by Step Solution

1. Step 1: Write the proportion equation
   528,823.50 : 771,086.25 = 771,086.25 : x
2. Step 2: Convert to fraction form
   528,823.50/771,086.25 = 771,086.25/x
3. Step 3: Cross multiply
   528,823.50x = 771,086.25 × 771,086.25
4. Step 4: Simplify right side
   528,823.50x = 594,574,004,939.06
5. Step 5: Solve for x
   x = 594,574,004,939.06/528,823.50
6. Step 6: Final answer
   x = 1,124,333.55