Finding the Third Proportional to 9,407,426 and 19,945,261

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407,426 : 19,945,261 = 19,945,261 : x
2. Step 2: Convert to fraction form
   9,407,426/19,945,261 = 19,945,261/x
3. Step 3: Cross multiply
   9,407,426x = 19,945,261 × 19,945,261
4. Step 4: Simplify right side
   9,407,426x = 397,813,436,358,121
5. Step 5: Solve for x
   x = 397,813,436,358,121/9,407,426
6. Step 6: Final answer
   x = 42,287,171.47