Finding the Third Proportional to 3,400,776 and 7,185,438

Step by Step Solution

1. Step 1: Write the proportion equation
   3,400,776 : 7,185,438 = 7,185,438 : x
2. Step 2: Convert to fraction form
   3,400,776/7,185,438 = 7,185,438/x
3. Step 3: Cross multiply
   3,400,776x = 7,185,438 × 7,185,438
4. Step 4: Simplify right side
   3,400,776x = 51,630,519,251,844
5. Step 5: Solve for x
   x = 51,630,519,251,844/3,400,776
6. Step 6: Final answer
   x = 15,181,981.77