Finding the Third Proportional to 4,138,778 and 9,047,380

Step by Step Solution

1. Step 1: Write the proportion equation
   4,138,778 : 9,047,380 = 9,047,380 : x
2. Step 2: Convert to fraction form
   4,138,778/9,047,380 = 9,047,380/x
3. Step 3: Cross multiply
   4,138,778x = 9,047,380 × 9,047,380
4. Step 4: Simplify right side
   4,138,778x = 81,855,084,864,400
5. Step 5: Solve for x
   x = 81,855,084,864,400/4,138,778
6. Step 6: Final answer
   x = 19,777,597.36