Finding the Third Proportional to 166,238 and 249,290

Step by Step Solution

1. Step 1: Write the proportion equation
   166,238 : 249,290 = 249,290 : x
2. Step 2: Convert to fraction form
   166,238/249,290 = 249,290/x
3. Step 3: Cross multiply
   166,238x = 249,290 × 249,290
4. Step 4: Simplify right side
   166,238x = 62,145,504,100
5. Step 5: Solve for x
   x = 62,145,504,100/166,238
6. Step 6: Final answer
   x = 373,834.53