Finding the Third Proportional to 7,948,478 and 12,606,708

Step by Step Solution

1. Step 1: Write the proportion equation
   7,948,478 : 12,606,708 = 12,606,708 : x
2. Step 2: Convert to fraction form
   7,948,478/12,606,708 = 12,606,708/x
3. Step 3: Cross multiply
   7,948,478x = 12,606,708 × 12,606,708
4. Step 4: Simplify right side
   7,948,478x = 158,929,086,597,264
5. Step 5: Solve for x
   x = 158,929,086,597,264/7,948,478
6. Step 6: Final answer
   x = 19,994,908.03