Finding the Third Proportional to 8,242,424 and 12,608,404

Step by Step Solution

1. Step 1: Write the proportion equation
   8,242,424 : 12,608,404 = 12,608,404 : x
2. Step 2: Convert to fraction form
   8,242,424/12,608,404 = 12,608,404/x
3. Step 3: Cross multiply
   8,242,424x = 12,608,404 × 12,608,404
4. Step 4: Simplify right side
   8,242,424x = 158,971,851,427,216
5. Step 5: Solve for x
   x = 158,971,851,427,216/8,242,424
6. Step 6: Final answer
   x = 19,287,026.66