Finding the Third Proportional to 620,376 and 1,339,788

Step by Step Solution

1. Step 1: Write the proportion equation
   620,376 : 1,339,788 = 1,339,788 : x
2. Step 2: Convert to fraction form
   620,376/1,339,788 = 1,339,788/x
3. Step 3: Cross multiply
   620,376x = 1,339,788 × 1,339,788
4. Step 4: Simplify right side
   620,376x = 1,795,031,884,944
5. Step 5: Solve for x
   x = 1,795,031,884,944/620,376
6. Step 6: Final answer
   x = 2,893,457.98