Finding the Third Proportional to 9,970,104 and 21,689,808

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970,104 : 21,689,808 = 21,689,808 : x
2. Step 2: Convert to fraction form
   9,970,104/21,689,808 = 21,689,808/x
3. Step 3: Cross multiply
   9,970,104x = 21,689,808 × 21,689,808
4. Step 4: Simplify right side
   9,970,104x = 470,447,771,076,864
5. Step 5: Solve for x
   x = 470,447,771,076,864/9,970,104
6. Step 6: Final answer
   x = 47,185,843.91