Finding the Third Proportional to 359,830 and 528,074

Step by Step Solution

1. Step 1: Write the proportion equation
   359,830 : 528,074 = 528,074 : x
2. Step 2: Convert to fraction form
   359,830/528,074 = 528,074/x
3. Step 3: Cross multiply
   359,830x = 528,074 × 528,074
4. Step 4: Simplify right side
   359,830x = 278,862,149,476
5. Step 5: Solve for x
   x = 278,862,149,476/359,830
6. Step 6: Final answer
   x = 774,983.05