Finding the Third Proportional to 249,870 and 549,498

Step by Step Solution

1. Step 1: Write the proportion equation
   249,870 : 549,498 = 549,498 : x
2. Step 2: Convert to fraction form
   249,870/549,498 = 549,498/x
3. Step 3: Cross multiply
   249,870x = 549,498 × 549,498
4. Step 4: Simplify right side
   249,870x = 301,948,052,004
5. Step 5: Solve for x
   x = 301,948,052,004/249,870
6. Step 6: Final answer
   x = 1,208,420.59