Finding the Third Proportional to 487,386 and 753,205.50

Step by Step Solution

1. Step 1: Write the proportion equation
   487,386 : 753,205.50 = 753,205.50 : x
2. Step 2: Convert to fraction form
   487,386/753,205.50 = 753,205.50/x
3. Step 3: Cross multiply
   487,386x = 753,205.50 × 753,205.50
4. Step 4: Simplify right side
   487,386x = 567,318,525,230.25
5. Step 5: Solve for x
   x = 567,318,525,230.25/487,386
6. Step 6: Final answer
   x = 1,164,002.51