Finding the Third Proportional to 3,848,978 and 5,381,109

Step by Step Solution

1. Step 1: Write the proportion equation
   3,848,978 : 5,381,109 = 5,381,109 : x
2. Step 2: Convert to fraction form
   3,848,978/5,381,109 = 5,381,109/x
3. Step 3: Cross multiply
   3,848,978x = 5,381,109 × 5,381,109
4. Step 4: Simplify right side
   3,848,978x = 28,956,334,069,881
5. Step 5: Solve for x
   x = 28,956,334,069,881/3,848,978
6. Step 6: Final answer
   x = 7,523,122.78