Finding the Third Proportional to 20,402,436 and 43,107,519

Step by Step Solution

1. Step 1: Write the proportion equation
   20,402,436 : 43,107,519 = 43,107,519 : x
2. Step 2: Convert to fraction form
   20,402,436/43,107,519 = 43,107,519/x
3. Step 3: Cross multiply
   20,402,436x = 43,107,519 × 43,107,519
4. Step 4: Simplify right side
   20,402,436x = 1,858,258,194,335,361
5. Step 5: Solve for x
   x = 1,858,258,194,335,361/20,402,436
6. Step 6: Final answer
   x = 91,080,211.91