Finding the Third Proportional to 10,489,518 and 16,200,109

Step by Step Solution

1. Step 1: Write the proportion equation
   10,489,518 : 16,200,109 = 16,200,109 : x
2. Step 2: Convert to fraction form
   10,489,518/16,200,109 = 16,200,109/x
3. Step 3: Cross multiply
   10,489,518x = 16,200,109 × 16,200,109
4. Step 4: Simplify right side
   10,489,518x = 262,443,531,611,881
5. Step 5: Solve for x
   x = 262,443,531,611,881/10,489,518
6. Step 6: Final answer
   x = 25,019,598.77