Finding the Third Proportional to 359,816 and 528,054

Step by Step Solution

1. Step 1: Write the proportion equation
   359,816 : 528,054 = 528,054 : x
2. Step 2: Convert to fraction form
   359,816/528,054 = 528,054/x
3. Step 3: Cross multiply
   359,816x = 528,054 × 528,054
4. Step 4: Simplify right side
   359,816x = 278,841,026,916
5. Step 5: Solve for x
   x = 278,841,026,916/359,816
6. Step 6: Final answer
   x = 774,954.50