Finding the Third Proportional to 343,428.50 and 744,025

Step by Step Solution

1. Step 1: Write the proportion equation
   343,428.50 : 744,025 = 744,025 : x
2. Step 2: Convert to fraction form
   343,428.50/744,025 = 744,025/x
3. Step 3: Cross multiply
   343,428.50x = 744,025 × 744,025
4. Step 4: Simplify right side
   343,428.50x = 553,573,200,625
5. Step 5: Solve for x
   x = 553,573,200,625/343,428.50
6. Step 6: Final answer
   x = 1,611,902.33