Finding the Third Proportional to 945,640 and 1,419,428

Step by Step Solution

1. Step 1: Write the proportion equation
   945,640 : 1,419,428 = 1,419,428 : x
2. Step 2: Convert to fraction form
   945,640/1,419,428 = 1,419,428/x
3. Step 3: Cross multiply
   945,640x = 1,419,428 × 1,419,428
4. Step 4: Simplify right side
   945,640x = 2,014,775,847,184
5. Step 5: Solve for x
   x = 2,014,775,847,184/945,640
6. Step 6: Final answer
   x = 2,130,594.99