Finding the Third Proportional to 36,990 and 56,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   36,990 : 56,443.50 = 56,443.50 : x
2. Step 2: Convert to fraction form
   36,990/56,443.50 = 56,443.50/x
3. Step 3: Cross multiply
   36,990x = 56,443.50 × 56,443.50
4. Step 4: Simplify right side
   36,990x = 3,185,868,692.25
5. Step 5: Solve for x
   x = 3,185,868,692.25/36,990
6. Step 6: Final answer
   x = 86,127.84