Finding the Third Proportional to 505,899 and 1,171,219.50

Step by Step Solution

1. Step 1: Write the proportion equation
   505,899 : 1,171,219.50 = 1,171,219.50 : x
2. Step 2: Convert to fraction form
   505,899/1,171,219.50 = 1,171,219.50/x
3. Step 3: Cross multiply
   505,899x = 1,171,219.50 × 1,171,219.50
4. Step 4: Simplify right side
   505,899x = 1,371,755,117,180.25
5. Step 5: Solve for x
   x = 1,371,755,117,180.25/505,899
6. Step 6: Final answer
   x = 2,711,519.72