Finding the Third Proportional to 4,225,144 and 9,123,712

Step by Step Solution

1. Step 1: Write the proportion equation
   4,225,144 : 9,123,712 = 9,123,712 : x
2. Step 2: Convert to fraction form
   4,225,144/9,123,712 = 9,123,712/x
3. Step 3: Cross multiply
   4,225,144x = 9,123,712 × 9,123,712
4. Step 4: Simplify right side
   4,225,144x = 83,242,120,658,944
5. Step 5: Solve for x
   x = 83,242,120,658,944/4,225,144
6. Step 6: Final answer
   x = 19,701,605.59