Finding the Third Proportional to 5,141,976 and 9,817,392

Step by Step Solution

1. Step 1: Write the proportion equation
   5,141,976 : 9,817,392 = 9,817,392 : x
2. Step 2: Convert to fraction form
   5,141,976/9,817,392 = 9,817,392/x
3. Step 3: Cross multiply
   5,141,976x = 9,817,392 × 9,817,392
4. Step 4: Simplify right side
   5,141,976x = 96,381,185,681,664
5. Step 5: Solve for x
   x = 96,381,185,681,664/5,141,976
6. Step 6: Final answer
   x = 18,743,997.58