Finding the Third Proportional to 718,878.50 and 1,538,738

Step by Step Solution

1. Step 1: Write the proportion equation
   718,878.50 : 1,538,738 = 1,538,738 : x
2. Step 2: Convert to fraction form
   718,878.50/1,538,738 = 1,538,738/x
3. Step 3: Cross multiply
   718,878.50x = 1,538,738 × 1,538,738
4. Step 4: Simplify right side
   718,878.50x = 2,367,714,632,644
5. Step 5: Solve for x
   x = 2,367,714,632,644/718,878.50
6. Step 6: Final answer
   x = 3,293,622.82