Finding the Third Proportional to 491,513.91 and 664,066.69

Step by Step Solution

1. Step 1: Write the proportion equation
   491,513.91 : 664,066.69 = 664,066.69 : x
2. Step 2: Convert to fraction form
   491,513.91/664,066.69 = 664,066.69/x
3. Step 3: Cross multiply
   491,513.91x = 664,066.69 × 664,066.69
4. Step 4: Simplify right side
   491,513.91x = 440,984,565,447.22
5. Step 5: Solve for x
   x = 440,984,565,447.22/491,513.91
6. Step 6: Final answer
   x = 897,196.52