Finding the Third Proportional to 207,286 and 439,482.25

Step by Step Solution

1. Step 1: Write the proportion equation
   207,286 : 439,482.25 = 439,482.25 : x
2. Step 2: Convert to fraction form
   207,286/439,482.25 = 439,482.25/x
3. Step 3: Cross multiply
   207,286x = 439,482.25 × 439,482.25
4. Step 4: Simplify right side
   207,286x = 193,144,648,065.06
5. Step 5: Solve for x
   x = 193,144,648,065.06/207,286
6. Step 6: Final answer
   x = 931,778.55