Finding the Third Proportional to 539,870 and 1,158,288

Step by Step Solution

1. Step 1: Write the proportion equation
   539,870 : 1,158,288 = 1,158,288 : x
2. Step 2: Convert to fraction form
   539,870/1,158,288 = 1,158,288/x
3. Step 3: Cross multiply
   539,870x = 1,158,288 × 1,158,288
4. Step 4: Simplify right side
   539,870x = 1,341,631,090,944
5. Step 5: Solve for x
   x = 1,341,631,090,944/539,870
6. Step 6: Final answer
   x = 2,485,100.29