Finding the Third Proportional to 427,011 and 988,423.50

Step by Step Solution

1. Step 1: Write the proportion equation
   427,011 : 988,423.50 = 988,423.50 : x
2. Step 2: Convert to fraction form
   427,011/988,423.50 = 988,423.50/x
3. Step 3: Cross multiply
   427,011x = 988,423.50 × 988,423.50
4. Step 4: Simplify right side
   427,011x = 976,981,015,352.25
5. Step 5: Solve for x
   x = 976,981,015,352.25/427,011
6. Step 6: Final answer
   x = 2,287,952.81