Finding the Third Proportional to 705,138 and 1,074,238

Step by Step Solution

1. Step 1: Write the proportion equation
   705,138 : 1,074,238 = 1,074,238 : x
2. Step 2: Convert to fraction form
   705,138/1,074,238 = 1,074,238/x
3. Step 3: Cross multiply
   705,138x = 1,074,238 × 1,074,238
4. Step 4: Simplify right side
   705,138x = 1,153,987,280,644
5. Step 5: Solve for x
   x = 1,153,987,280,644/705,138
6. Step 6: Final answer
   x = 1,636,541.05