Finding the Third Proportional to 18,562,644 and 39,867,300

Step by Step Solution

1. Step 1: Write the proportion equation
   18,562,644 : 39,867,300 = 39,867,300 : x
2. Step 2: Convert to fraction form
   18,562,644/39,867,300 = 39,867,300/x
3. Step 3: Cross multiply
   18,562,644x = 39,867,300 × 39,867,300
4. Step 4: Simplify right side
   18,562,644x = 1,589,401,609,290,000
5. Step 5: Solve for x
   x = 1,589,401,609,290,000/18,562,644
6. Step 6: Final answer
   x = 85,623,664.89