Finding the Third Proportional to 4,269,278 and 9,247,144

Step by Step Solution

1. Step 1: Write the proportion equation
   4,269,278 : 9,247,144 = 9,247,144 : x
2. Step 2: Convert to fraction form
   4,269,278/9,247,144 = 9,247,144/x
3. Step 3: Cross multiply
   4,269,278x = 9,247,144 × 9,247,144
4. Step 4: Simplify right side
   4,269,278x = 85,509,672,156,736
5. Step 5: Solve for x
   x = 85,509,672,156,736/4,269,278
6. Step 6: Final answer
   x = 20,029,070.99