Finding the Third Proportional to 286,404 and 619,932

Step by Step Solution

1. Step 1: Write the proportion equation
   286,404 : 619,932 = 619,932 : x
2. Step 2: Convert to fraction form
   286,404/619,932 = 619,932/x
3. Step 3: Cross multiply
   286,404x = 619,932 × 619,932
4. Step 4: Simplify right side
   286,404x = 384,315,684,624
5. Step 5: Solve for x
   x = 384,315,684,624/286,404
6. Step 6: Final answer
   x = 1,341,865.63