Finding the Third Proportional to 21,397,935 and 41,724,174

Step by Step Solution

1. Step 1: Write the proportion equation
   21,397,935 : 41,724,174 = 41,724,174 : x
2. Step 2: Convert to fraction form
   21,397,935/41,724,174 = 41,724,174/x
3. Step 3: Cross multiply
   21,397,935x = 41,724,174 × 41,724,174
4. Step 4: Simplify right side
   21,397,935x = 1,740,906,695,982,276
5. Step 5: Solve for x
   x = 1,740,906,695,982,276/21,397,935
6. Step 6: Final answer
   x = 81,358,630.91