Finding the Third Proportional to 525,980 and 744,256

Step by Step Solution

1. Step 1: Write the proportion equation
   525,980 : 744,256 = 744,256 : x
2. Step 2: Convert to fraction form
   525,980/744,256 = 744,256/x
3. Step 3: Cross multiply
   525,980x = 744,256 × 744,256
4. Step 4: Simplify right side
   525,980x = 553,916,993,536
5. Step 5: Solve for x
   x = 553,916,993,536/525,980
6. Step 6: Final answer
   x = 1,053,114.17