Finding the Third Proportional to 508,599 and 744,648

Step by Step Solution

1. Step 1: Write the proportion equation
   508,599 : 744,648 = 744,648 : x
2. Step 2: Convert to fraction form
   508,599/744,648 = 744,648/x
3. Step 3: Cross multiply
   508,599x = 744,648 × 744,648
4. Step 4: Simplify right side
   508,599x = 554,500,643,904
5. Step 5: Solve for x
   x = 554,500,643,904/508,599
6. Step 6: Final answer
   x = 1,090,251.15