Finding the Third Proportional to 13,787,442 and 21,821,697

Step by Step Solution

1. Step 1: Write the proportion equation
   13,787,442 : 21,821,697 = 21,821,697 : x
2. Step 2: Convert to fraction form
   13,787,442/21,821,697 = 21,821,697/x
3. Step 3: Cross multiply
   13,787,442x = 21,821,697 × 21,821,697
4. Step 4: Simplify right side
   13,787,442x = 476,186,459,959,809
5. Step 5: Solve for x
   x = 476,186,459,959,809/13,787,442
6. Step 6: Final answer
   x = 34,537,694.52