Finding the Third Proportional to 160,247 and 249,111

Step by Step Solution

1. Step 1: Write the proportion equation
   160,247 : 249,111 = 249,111 : x
2. Step 2: Convert to fraction form
   160,247/249,111 = 249,111/x
3. Step 3: Cross multiply
   160,247x = 249,111 × 249,111
4. Step 4: Simplify right side
   160,247x = 62,056,290,321
5. Step 5: Solve for x
   x = 62,056,290,321/160,247
6. Step 6: Final answer
   x = 387,253.99