Finding the Third Proportional to 414,286 and 907,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   414,286 : 907,647.50 = 907,647.50 : x
2. Step 2: Convert to fraction form
   414,286/907,647.50 = 907,647.50/x
3. Step 3: Cross multiply
   414,286x = 907,647.50 × 907,647.50
4. Step 4: Simplify right side
   414,286x = 823,823,984,256.25
5. Step 5: Solve for x
   x = 823,823,984,256.25/414,286
6. Step 6: Final answer
   x = 1,988,539.28