Finding the Third Proportional to 656,640 and 943,488

Step by Step Solution

1. Step 1: Write the proportion equation
   656,640 : 943,488 = 943,488 : x
2. Step 2: Convert to fraction form
   656,640/943,488 = 943,488/x
3. Step 3: Cross multiply
   656,640x = 943,488 × 943,488
4. Step 4: Simplify right side
   656,640x = 890,169,606,144
5. Step 5: Solve for x
   x = 890,169,606,144/656,640
6. Step 6: Final answer
   x = 1,355,643.28