Finding the Third Proportional to 672,697 and 999,457.50

Step by Step Solution

1. Step 1: Write the proportion equation
   672,697 : 999,457.50 = 999,457.50 : x
2. Step 2: Convert to fraction form
   672,697/999,457.50 = 999,457.50/x
3. Step 3: Cross multiply
   672,697x = 999,457.50 × 999,457.50
4. Step 4: Simplify right side
   672,697x = 998,915,294,306.25
5. Step 5: Solve for x
   x = 998,915,294,306.25/672,697
6. Step 6: Final answer
   x = 1,484,940.91