Finding the Third Proportional to 9,243,185 and 19,947,813

Step by Step Solution

1. Step 1: Write the proportion equation
   9,243,185 : 19,947,813 = 19,947,813 : x
2. Step 2: Convert to fraction form
   9,243,185/19,947,813 = 19,947,813/x
3. Step 3: Cross multiply
   9,243,185x = 19,947,813 × 19,947,813
4. Step 4: Simplify right side
   9,243,185x = 397,915,243,482,969
5. Step 5: Solve for x
   x = 397,915,243,482,969/9,243,185
6. Step 6: Final answer
   x = 43,049,581.23