Finding the Third Proportional to 4,869,028 and 7,123,254

Step by Step Solution

1. Step 1: Write the proportion equation
   4,869,028 : 7,123,254 = 7,123,254 : x
2. Step 2: Convert to fraction form
   4,869,028/7,123,254 = 7,123,254/x
3. Step 3: Cross multiply
   4,869,028x = 7,123,254 × 7,123,254
4. Step 4: Simplify right side
   4,869,028x = 50,740,747,548,516
5. Step 5: Solve for x
   x = 50,740,747,548,516/4,869,028
6. Step 6: Final answer
   x = 10,421,124.62