Finding the Third Proportional to 3,485,178 and 5,019,637

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,178 : 5,019,637 = 5,019,637 : x
2. Step 2: Convert to fraction form
   3,485,178/5,019,637 = 5,019,637/x
3. Step 3: Cross multiply
   3,485,178x = 5,019,637 × 5,019,637
4. Step 4: Simplify right side
   3,485,178x = 25,196,755,611,769
5. Step 5: Solve for x
   x = 25,196,755,611,769/3,485,178
6. Step 6: Final answer
   x = 7,229,689.74