Finding the Third Proportional to 1,036,917 and 2,156,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036,917 : 2,156,605.50 = 2,156,605.50 : x
2. Step 2: Convert to fraction form
   1,036,917/2,156,605.50 = 2,156,605.50/x
3. Step 3: Cross multiply
   1,036,917x = 2,156,605.50 × 2,156,605.50
4. Step 4: Simplify right side
   1,036,917x = 4,650,947,282,630.25
5. Step 5: Solve for x
   x = 4,650,947,282,630.25/1,036,917
6. Step 6: Final answer
   x = 4,485,361.20