Finding the Third Proportional to 499,365 and 772,352.72

Step by Step Solution

1. Step 1: Write the proportion equation
   499,365 : 772,352.72 = 772,352.72 : x
2. Step 2: Convert to fraction form
   499,365/772,352.72 = 772,352.72/x
3. Step 3: Cross multiply
   499,365x = 772,352.72 × 772,352.72
4. Step 4: Simplify right side
   499,365x = 596,528,722,160.52
5. Step 5: Solve for x
   x = 596,528,722,160.52/499,365
6. Step 6: Final answer
   x = 1,194,574.55