Finding the Third Proportional to 381,843 and 754,049.25

Step by Step Solution

1. Step 1: Write the proportion equation
   381,843 : 754,049.25 = 754,049.25 : x
2. Step 2: Convert to fraction form
   381,843/754,049.25 = 754,049.25/x
3. Step 3: Cross multiply
   381,843x = 754,049.25 × 754,049.25
4. Step 4: Simplify right side
   381,843x = 568,590,271,425.56
5. Step 5: Solve for x
   x = 568,590,271,425.56/381,843
6. Step 6: Final answer
   x = 1,489,068.21