Finding the Third Proportional to 4,215,178 and 9,947,192

Step by Step Solution

1. Step 1: Write the proportion equation
   4,215,178 : 9,947,192 = 9,947,192 : x
2. Step 2: Convert to fraction form
   4,215,178/9,947,192 = 9,947,192/x
3. Step 3: Cross multiply
   4,215,178x = 9,947,192 × 9,947,192
4. Step 4: Simplify right side
   4,215,178x = 98,946,628,684,864
5. Step 5: Solve for x
   x = 98,946,628,684,864/4,215,178
6. Step 6: Final answer
   x = 23,473,890.94