Finding the Third Proportional to 621,495 and 1,353,699

Step by Step Solution

1. Step 1: Write the proportion equation
   621,495 : 1,353,699 = 1,353,699 : x
2. Step 2: Convert to fraction form
   621,495/1,353,699 = 1,353,699/x
3. Step 3: Cross multiply
   621,495x = 1,353,699 × 1,353,699
4. Step 4: Simplify right side
   621,495x = 1,832,500,982,601
5. Step 5: Solve for x
   x = 1,832,500,982,601/621,495
6. Step 6: Final answer
   x = 2,948,536.97