Finding the Third Proportional to 388,481 and 524,845.50

Step by Step Solution

1. Step 1: Write the proportion equation
   388,481 : 524,845.50 = 524,845.50 : x
2. Step 2: Convert to fraction form
   388,481/524,845.50 = 524,845.50/x
3. Step 3: Cross multiply
   388,481x = 524,845.50 × 524,845.50
4. Step 4: Simplify right side
   388,481x = 275,462,798,870.25
5. Step 5: Solve for x
   x = 275,462,798,870.25/388,481
6. Step 6: Final answer
   x = 709,076.63