Finding the Third Proportional to 4,068,980 and 8,837,128

Step by Step Solution

1. Step 1: Write the proportion equation
   4,068,980 : 8,837,128 = 8,837,128 : x
2. Step 2: Convert to fraction form
   4,068,980/8,837,128 = 8,837,128/x
3. Step 3: Cross multiply
   4,068,980x = 8,837,128 × 8,837,128
4. Step 4: Simplify right side
   4,068,980x = 78,094,831,288,384
5. Step 5: Solve for x
   x = 78,094,831,288,384/4,068,980
6. Step 6: Final answer
   x = 19,192,729.21