Finding the Third Proportional to 649,789 and 1,425,123

Step by Step Solution

1. Step 1: Write the proportion equation
   649,789 : 1,425,123 = 1,425,123 : x
2. Step 2: Convert to fraction form
   649,789/1,425,123 = 1,425,123/x
3. Step 3: Cross multiply
   649,789x = 1,425,123 × 1,425,123
4. Step 4: Simplify right side
   649,789x = 2,030,975,565,129
5. Step 5: Solve for x
   x = 2,030,975,565,129/649,789
6. Step 6: Final answer
   x = 3,125,592.41