Finding the Third Proportional to 4,261,365 and 9,155,178

Step by Step Solution

1. Step 1: Write the proportion equation
   4,261,365 : 9,155,178 = 9,155,178 : x
2. Step 2: Convert to fraction form
   4,261,365/9,155,178 = 9,155,178/x
3. Step 3: Cross multiply
   4,261,365x = 9,155,178 × 9,155,178
4. Step 4: Simplify right side
   4,261,365x = 83,817,284,211,684
5. Step 5: Solve for x
   x = 83,817,284,211,684/4,261,365
6. Step 6: Final answer
   x = 19,669,116.40