Finding the Third Proportional to 7,979,030 and 12,636,538

Step by Step Solution

1. Step 1: Write the proportion equation
   7,979,030 : 12,636,538 = 12,636,538 : x
2. Step 2: Convert to fraction form
   7,979,030/12,636,538 = 12,636,538/x
3. Step 3: Cross multiply
   7,979,030x = 12,636,538 × 12,636,538
4. Step 4: Simplify right side
   7,979,030x = 159,682,092,625,444
5. Step 5: Solve for x
   x = 159,682,092,625,444/7,979,030
6. Step 6: Final answer
   x = 20,012,719.92