Finding the Third Proportional to 257,199.75 and 549,864

Step by Step Solution

1. Step 1: Write the proportion equation
   257,199.75 : 549,864 = 549,864 : x
2. Step 2: Convert to fraction form
   257,199.75/549,864 = 549,864/x
3. Step 3: Cross multiply
   257,199.75x = 549,864 × 549,864
4. Step 4: Simplify right side
   257,199.75x = 302,350,418,496
5. Step 5: Solve for x
   x = 302,350,418,496/257,199.75
6. Step 6: Final answer
   x = 1,175,547.09