Finding the Third Proportional to 369,765 and 528,403.50

Step by Step Solution

1. Step 1: Write the proportion equation
   369,765 : 528,403.50 = 528,403.50 : x
2. Step 2: Convert to fraction form
   369,765/528,403.50 = 528,403.50/x
3. Step 3: Cross multiply
   369,765x = 528,403.50 × 528,403.50
4. Step 4: Simplify right side
   369,765x = 279,210,258,812.25
5. Step 5: Solve for x
   x = 279,210,258,812.25/369,765
6. Step 6: Final answer
   x = 755,101.91