Finding the Third Proportional to 743,965 and 1,620,788

Step by Step Solution

1. Step 1: Write the proportion equation
   743,965 : 1,620,788 = 1,620,788 : x
2. Step 2: Convert to fraction form
   743,965/1,620,788 = 1,620,788/x
3. Step 3: Cross multiply
   743,965x = 1,620,788 × 1,620,788
4. Step 4: Simplify right side
   743,965x = 2,626,953,740,944
5. Step 5: Solve for x
   x = 2,626,953,740,944/743,965
6. Step 6: Final answer
   x = 3,531,017.91