Finding the Third Proportional to 359,806 and 528,045

Step by Step Solution

1. Step 1: Write the proportion equation
   359,806 : 528,045 = 528,045 : x
2. Step 2: Convert to fraction form
   359,806/528,045 = 528,045/x
3. Step 3: Cross multiply
   359,806x = 528,045 × 528,045
4. Step 4: Simplify right side
   359,806x = 278,831,522,025
5. Step 5: Solve for x
   x = 278,831,522,025/359,806
6. Step 6: Final answer
   x = 774,949.62