Finding the Third Proportional to 7,470,321 and 10,991,862

Step by Step Solution

1. Step 1: Write the proportion equation
   7,470,321 : 10,991,862 = 10,991,862 : x
2. Step 2: Convert to fraction form
   7,470,321/10,991,862 = 10,991,862/x
3. Step 3: Cross multiply
   7,470,321x = 10,991,862 × 10,991,862
4. Step 4: Simplify right side
   7,470,321x = 120,821,030,227,044
5. Step 5: Solve for x
   x = 120,821,030,227,044/7,470,321
6. Step 6: Final answer
   x = 16,173,472.36