Finding the Third Proportional to 4,038,995 and 8,645,476

Step by Step Solution

1. Step 1: Write the proportion equation
   4,038,995 : 8,645,476 = 8,645,476 : x
2. Step 2: Convert to fraction form
   4,038,995/8,645,476 = 8,645,476/x
3. Step 3: Cross multiply
   4,038,995x = 8,645,476 × 8,645,476
4. Step 4: Simplify right side
   4,038,995x = 74,744,255,266,576
5. Step 5: Solve for x
   x = 74,744,255,266,576/4,038,995
6. Step 6: Final answer
   x = 18,505,656.79