Finding the Third Proportional to 369,756 and 528,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   369,756 : 528,389.50 = 528,389.50 : x
2. Step 2: Convert to fraction form
   369,756/528,389.50 = 528,389.50/x
3. Step 3: Cross multiply
   369,756x = 528,389.50 × 528,389.50
4. Step 4: Simplify right side
   369,756x = 279,195,463,710.25
5. Step 5: Solve for x
   x = 279,195,463,710.25/369,756
6. Step 6: Final answer
   x = 755,080.28