Finding the Third Proportional to 19,778,069 and 41,071,972

Step by Step Solution

1. Step 1: Write the proportion equation
   19,778,069 : 41,071,972 = 41,071,972 : x
2. Step 2: Convert to fraction form
   19,778,069/41,071,972 = 41,071,972/x
3. Step 3: Cross multiply
   19,778,069x = 41,071,972 × 41,071,972
4. Step 4: Simplify right side
   19,778,069x = 1,686,906,883,968,784
5. Step 5: Solve for x
   x = 1,686,906,883,968,784/19,778,069
6. Step 6: Final answer
   x = 85,291,788.80