Finding the Third Proportional to 113,580 and 249,030

Step by Step Solution

1. Step 1: Write the proportion equation
   113,580 : 249,030 = 249,030 : x
2. Step 2: Convert to fraction form
   113,580/249,030 = 249,030/x
3. Step 3: Cross multiply
   113,580x = 249,030 × 249,030
4. Step 4: Simplify right side
   113,580x = 62,015,940,900
5. Step 5: Solve for x
   x = 62,015,940,900/113,580
6. Step 6: Final answer
   x = 546,011.10