Finding the Third Proportional to 864,304 and 1,308,380

Step by Step Solution

1. Step 1: Write the proportion equation
   864,304 : 1,308,380 = 1,308,380 : x
2. Step 2: Convert to fraction form
   864,304/1,308,380 = 1,308,380/x
3. Step 3: Cross multiply
   864,304x = 1,308,380 × 1,308,380
4. Step 4: Simplify right side
   864,304x = 1,711,858,224,400
5. Step 5: Solve for x
   x = 1,711,858,224,400/864,304
6. Step 6: Final answer
   x = 1,980,620.50