Finding the Third Proportional to 13,012,848 and 19,479,870

Step by Step Solution

1. Step 1: Write the proportion equation
   13,012,848 : 19,479,870 = 19,479,870 : x
2. Step 2: Convert to fraction form
   13,012,848/19,479,870 = 19,479,870/x
3. Step 3: Cross multiply
   13,012,848x = 19,479,870 × 19,479,870
4. Step 4: Simplify right side
   13,012,848x = 379,465,335,216,900
5. Step 5: Solve for x
   x = 379,465,335,216,900/13,012,848
6. Step 6: Final answer
   x = 29,160,821.31