Finding the Third Proportional to 316,878 and 704,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   316,878 : 704,605.50 = 704,605.50 : x
2. Step 2: Convert to fraction form
   316,878/704,605.50 = 704,605.50/x
3. Step 3: Cross multiply
   316,878x = 704,605.50 × 704,605.50
4. Step 4: Simplify right side
   316,878x = 496,468,910,630.25
5. Step 5: Solve for x
   x = 496,468,910,630.25/316,878
6. Step 6: Final answer
   x = 1,566,750.96