Finding the Third Proportional to 40,633,686 and 86,778,126

Step by Step Solution

1. Step 1: Write the proportion equation
   40,633,686 : 86,778,126 = 86,778,126 : x
2. Step 2: Convert to fraction form
   40,633,686/86,778,126 = 86,778,126/x
3. Step 3: Cross multiply
   40,633,686x = 86,778,126 × 86,778,126
4. Step 4: Simplify right side
   40,633,686x = 7,530,443,152,071,876
5. Step 5: Solve for x
   x = 7,530,443,152,071,876/40,633,686
6. Step 6: Final answer
   x = 185,325,130.29