Finding the Third Proportional to 659,910 and 1,438,296

Step by Step Solution

1. Step 1: Write the proportion equation
   659,910 : 1,438,296 = 1,438,296 : x
2. Step 2: Convert to fraction form
   659,910/1,438,296 = 1,438,296/x
3. Step 3: Cross multiply
   659,910x = 1,438,296 × 1,438,296
4. Step 4: Simplify right side
   659,910x = 2,068,695,383,616
5. Step 5: Solve for x
   x = 2,068,695,383,616/659,910
6. Step 6: Final answer
   x = 3,134,814.42