Finding the Third Proportional to 40,698.70 and 59,817.87

Step by Step Solution

1. Step 1: Write the proportion equation
   40,698.70 : 59,817.87 = 59,817.87 : x
2. Step 2: Convert to fraction form
   40,698.70/59,817.87 = 59,817.87/x
3. Step 3: Cross multiply
   40,698.70x = 59,817.87 × 59,817.87
4. Step 4: Simplify right side
   40,698.70x = 3,578,177,234.86
5. Step 5: Solve for x
   x = 3,578,177,234.86/40,698.70
6. Step 6: Final answer
   x = 87,918.70