Finding the Third Proportional to 664,246 and 1,057,460

Step by Step Solution

1. Step 1: Write the proportion equation
   664,246 : 1,057,460 = 1,057,460 : x
2. Step 2: Convert to fraction form
   664,246/1,057,460 = 1,057,460/x
3. Step 3: Cross multiply
   664,246x = 1,057,460 × 1,057,460
4. Step 4: Simplify right side
   664,246x = 1,118,221,651,600
5. Step 5: Solve for x
   x = 1,118,221,651,600/664,246
6. Step 6: Final answer
   x = 1,683,445.07