Finding the Third Proportional to 165,870 and 249,999

Step by Step Solution

1. Step 1: Write the proportion equation
   165,870 : 249,999 = 249,999 : x
2. Step 2: Convert to fraction form
   165,870/249,999 = 249,999/x
3. Step 3: Cross multiply
   165,870x = 249,999 × 249,999
4. Step 4: Simplify right side
   165,870x = 62,499,500,001
5. Step 5: Solve for x
   x = 62,499,500,001/165,870
6. Step 6: Final answer
   x = 376,798.09