Finding the Third Proportional to 57,648 and 89,068.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,648 : 89,068.50 = 89,068.50 : x
2. Step 2: Convert to fraction form
   57,648/89,068.50 = 89,068.50/x
3. Step 3: Cross multiply
   57,648x = 89,068.50 × 89,068.50
4. Step 4: Simplify right side
   57,648x = 7,933,197,692.25
5. Step 5: Solve for x
   x = 7,933,197,692.25/57,648
6. Step 6: Final answer
   x = 137,614.45