Finding the Third Proportional to 719,942 and 1,555,340

Step by Step Solution

1. Step 1: Write the proportion equation
   719,942 : 1,555,340 = 1,555,340 : x
2. Step 2: Convert to fraction form
   719,942/1,555,340 = 1,555,340/x
3. Step 3: Cross multiply
   719,942x = 1,555,340 × 1,555,340
4. Step 4: Simplify right side
   719,942x = 2,419,082,515,600
5. Step 5: Solve for x
   x = 2,419,082,515,600/719,942
6. Step 6: Final answer
   x = 3,360,107.50