Finding the Third Proportional to 427,911 and 662,233.50

Step by Step Solution

1. Step 1: Write the proportion equation
   427,911 : 662,233.50 = 662,233.50 : x
2. Step 2: Convert to fraction form
   427,911/662,233.50 = 662,233.50/x
3. Step 3: Cross multiply
   427,911x = 662,233.50 × 662,233.50
4. Step 4: Simplify right side
   427,911x = 438,553,208,522.25
5. Step 5: Solve for x
   x = 438,553,208,522.25/427,911
6. Step 6: Final answer
   x = 1,024,870.14