Finding the Third Proportional to 1,997,778 and 4,314,774

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997,778 : 4,314,774 = 4,314,774 : x
2. Step 2: Convert to fraction form
   1,997,778/4,314,774 = 4,314,774/x
3. Step 3: Cross multiply
   1,997,778x = 4,314,774 × 4,314,774
4. Step 4: Simplify right side
   1,997,778x = 18,617,274,671,076
5. Step 5: Solve for x
   x = 18,617,274,671,076/1,997,778
6. Step 6: Final answer
   x = 9,318,990.73