Finding the Third Proportional to 1,005,172 and 2,167,798

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,172 : 2,167,798 = 2,167,798 : x
2. Step 2: Convert to fraction form
   1,005,172/2,167,798 = 2,167,798/x
3. Step 3: Cross multiply
   1,005,172x = 2,167,798 × 2,167,798
4. Step 4: Simplify right side
   1,005,172x = 4,699,348,168,804
5. Step 5: Solve for x
   x = 4,699,348,168,804/1,005,172
6. Step 6: Final answer
   x = 4,675,168.20