Finding the Third Proportional to 415,989 and 913,126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   415,989 : 913,126.50 = 913,126.50 : x
2. Step 2: Convert to fraction form
   415,989/913,126.50 = 913,126.50/x
3. Step 3: Cross multiply
   415,989x = 913,126.50 × 913,126.50
4. Step 4: Simplify right side
   415,989x = 833,800,005,002.25
5. Step 5: Solve for x
   x = 833,800,005,002.25/415,989
6. Step 6: Final answer
   x = 2,004,379.94