Finding the Third Proportional to 207,284 and 439,478.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,284 : 439,478.50 = 439,478.50 : x
2. Step 2: Convert to fraction form
   207,284/439,478.50 = 439,478.50/x
3. Step 3: Cross multiply
   207,284x = 439,478.50 × 439,478.50
4. Step 4: Simplify right side
   207,284x = 193,141,351,962.25
5. Step 5: Solve for x
   x = 193,141,351,962.25/207,284
6. Step 6: Final answer
   x = 931,771.64