Finding the Third Proportional to 721,118 and 1,538,773

Step by Step Solution

1. Step 1: Write the proportion equation
   721,118 : 1,538,773 = 1,538,773 : x
2. Step 2: Convert to fraction form
   721,118/1,538,773 = 1,538,773/x
3. Step 3: Cross multiply
   721,118x = 1,538,773 × 1,538,773
4. Step 4: Simplify right side
   721,118x = 2,367,822,345,529
5. Step 5: Solve for x
   x = 2,367,822,345,529/721,118
6. Step 6: Final answer
   x = 3,283,543.53