Finding the Third Proportional to 140,504 and 249,820

Step by Step Solution

1. Step 1: Write the proportion equation
   140,504 : 249,820 = 249,820 : x
2. Step 2: Convert to fraction form
   140,504/249,820 = 249,820/x
3. Step 3: Cross multiply
   140,504x = 249,820 × 249,820
4. Step 4: Simplify right side
   140,504x = 62,410,032,400
5. Step 5: Solve for x
   x = 62,410,032,400/140,504
6. Step 6: Final answer
   x = 444,186.87