Finding the Third Proportional to 369,684 and 528,268.50

Step by Step Solution

1. Step 1: Write the proportion equation
   369,684 : 528,268.50 = 528,268.50 : x
2. Step 2: Convert to fraction form
   369,684/528,268.50 = 528,268.50/x
3. Step 3: Cross multiply
   369,684x = 528,268.50 × 528,268.50
4. Step 4: Simplify right side
   369,684x = 279,067,608,092.25
5. Step 5: Solve for x
   x = 279,067,608,092.25/369,684
6. Step 6: Final answer
   x = 754,881.49