Finding the Third Proportional to 116,408 and 249,808

Step by Step Solution

1. Step 1: Write the proportion equation
   116,408 : 249,808 = 249,808 : x
2. Step 2: Convert to fraction form
   116,408/249,808 = 249,808/x
3. Step 3: Cross multiply
   116,408x = 249,808 × 249,808
4. Step 4: Simplify right side
   116,408x = 62,404,036,864
5. Step 5: Solve for x
   x = 62,404,036,864/116,408
6. Step 6: Final answer
   x = 536,080.31