Finding the Third Proportional to 510,288 and 1,117,856

Step by Step Solution

1. Step 1: Write the proportion equation
   510,288 : 1,117,856 = 1,117,856 : x
2. Step 2: Convert to fraction form
   510,288/1,117,856 = 1,117,856/x
3. Step 3: Cross multiply
   510,288x = 1,117,856 × 1,117,856
4. Step 4: Simplify right side
   510,288x = 1,249,602,036,736
5. Step 5: Solve for x
   x = 1,249,602,036,736/510,288
6. Step 6: Final answer
   x = 2,448,817.21