Finding the Third Proportional to 4,601,274 and 9,678,372

Step by Step Solution

1. Step 1: Write the proportion equation
   4,601,274 : 9,678,372 = 9,678,372 : x
2. Step 2: Convert to fraction form
   4,601,274/9,678,372 = 9,678,372/x
3. Step 3: Cross multiply
   4,601,274x = 9,678,372 × 9,678,372
4. Step 4: Simplify right side
   4,601,274x = 93,670,884,570,384
5. Step 5: Solve for x
   x = 93,670,884,570,384/4,601,274
6. Step 6: Final answer
   x = 20,357,597.61