Finding the Third Proportional to 519,808 and 1,138,888

Step by Step Solution

1. Step 1: Write the proportion equation
   519,808 : 1,138,888 = 1,138,888 : x
2. Step 2: Convert to fraction form
   519,808/1,138,888 = 1,138,888/x
3. Step 3: Cross multiply
   519,808x = 1,138,888 × 1,138,888
4. Step 4: Simplify right side
   519,808x = 1,297,065,876,544
5. Step 5: Solve for x
   x = 1,297,065,876,544/519,808
6. Step 6: Final answer
   x = 2,495,278.79