Finding the Third Proportional to 713,218 and 1,538,788

Step by Step Solution

1. Step 1: Write the proportion equation
   713,218 : 1,538,788 = 1,538,788 : x
2. Step 2: Convert to fraction form
   713,218/1,538,788 = 1,538,788/x
3. Step 3: Cross multiply
   713,218x = 1,538,788 × 1,538,788
4. Step 4: Simplify right side
   713,218x = 2,367,868,508,944
5. Step 5: Solve for x
   x = 2,367,868,508,944/713,218
6. Step 6: Final answer
   x = 3,319,978.62