Finding the Third Proportional to 163,376 and 249,870

Step by Step Solution

1. Step 1: Write the proportion equation
   163,376 : 249,870 = 249,870 : x
2. Step 2: Convert to fraction form
   163,376/249,870 = 249,870/x
3. Step 3: Cross multiply
   163,376x = 249,870 × 249,870
4. Step 4: Simplify right side
   163,376x = 62,435,016,900
5. Step 5: Solve for x
   x = 62,435,016,900/163,376
6. Step 6: Final answer
   x = 382,155.38