Finding the Third Proportional to 302,508 and 664,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,508 : 664,066.50 = 664,066.50 : x
2. Step 2: Convert to fraction form
   302,508/664,066.50 = 664,066.50/x
3. Step 3: Cross multiply
   302,508x = 664,066.50 × 664,066.50
4. Step 4: Simplify right side
   302,508x = 440,984,316,422.25
5. Step 5: Solve for x
   x = 440,984,316,422.25/302,508
6. Step 6: Final answer
   x = 1,457,760.84