Finding the Third Proportional to 672,421.69 and 1,451,105.25

Step by Step Solution

1. Step 1: Write the proportion equation
   672,421.69 : 1,451,105.25 = 1,451,105.25 : x
2. Step 2: Convert to fraction form
   672,421.69/1,451,105.25 = 1,451,105.25/x
3. Step 3: Cross multiply
   672,421.69x = 1,451,105.25 × 1,451,105.25
4. Step 4: Simplify right side
   672,421.69x = 2,105,706,446,577.56
5. Step 5: Solve for x
   x = 2,105,706,446,577.56/672,421.69
6. Step 6: Final answer
   x = 3,131,526.67