Finding the Third Proportional to 3,842,910 and 8,316,945

Step by Step Solution

1. Step 1: Write the proportion equation
   3,842,910 : 8,316,945 = 8,316,945 : x
2. Step 2: Convert to fraction form
   3,842,910/8,316,945 = 8,316,945/x
3. Step 3: Cross multiply
   3,842,910x = 8,316,945 × 8,316,945
4. Step 4: Simplify right side
   3,842,910x = 69,171,574,133,025
5. Step 5: Solve for x
   x = 69,171,574,133,025/3,842,910
6. Step 6: Final answer
   x = 17,999,790.30