Finding the Third Proportional to 20,730.94 and 42,692.06

Step by Step Solution

1. Step 1: Write the proportion equation
   20,730.94 : 42,692.06 = 42,692.06 : x
2. Step 2: Convert to fraction form
   20,730.94/42,692.06 = 42,692.06/x
3. Step 3: Cross multiply
   20,730.94x = 42,692.06 × 42,692.06
4. Step 4: Simplify right side
   20,730.94x = 1,822,612,200.50
5. Step 5: Solve for x
   x = 1,822,612,200.50/20,730.94
6. Step 6: Final answer
   x = 87,917.50