Finding the Third Proportional to 670,149 and 1,359,738

Step by Step Solution

1. Step 1: Write the proportion equation
   670,149 : 1,359,738 = 1,359,738 : x
2. Step 2: Convert to fraction form
   670,149/1,359,738 = 1,359,738/x
3. Step 3: Cross multiply
   670,149x = 1,359,738 × 1,359,738
4. Step 4: Simplify right side
   670,149x = 1,848,887,428,644
5. Step 5: Solve for x
   x = 1,848,887,428,644/670,149
6. Step 6: Final answer
   x = 2,758,919.92