Finding the Third Proportional to 43,581 and 61,369.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,581 : 61,369.50 = 61,369.50 : x
2. Step 2: Convert to fraction form
   43,581/61,369.50 = 61,369.50/x
3. Step 3: Cross multiply
   43,581x = 61,369.50 × 61,369.50
4. Step 4: Simplify right side
   43,581x = 3,766,215,530.25
5. Step 5: Solve for x
   x = 3,766,215,530.25/43,581
6. Step 6: Final answer
   x = 86,418.75