Finding the Third Proportional to 10,151,403 and 21,139,321

Step by Step Solution

1. Step 1: Write the proportion equation
   10,151,403 : 21,139,321 = 21,139,321 : x
2. Step 2: Convert to fraction form
   10,151,403/21,139,321 = 21,139,321/x
3. Step 3: Cross multiply
   10,151,403x = 21,139,321 × 21,139,321
4. Step 4: Simplify right side
   10,151,403x = 446,870,892,341,041
5. Step 5: Solve for x
   x = 446,870,892,341,041/10,151,403
6. Step 6: Final answer
   x = 44,020,604.08