Finding the Third Proportional to 39,457 and 55,500

Step by Step Solution

1. Step 1: Write the proportion equation
   39,457 : 55,500 = 55,500 : x
2. Step 2: Convert to fraction form
   39,457/55,500 = 55,500/x
3. Step 3: Cross multiply
   39,457x = 55,500 × 55,500
4. Step 4: Simplify right side
   39,457x = 3,080,250,000
5. Step 5: Solve for x
   x = 3,080,250,000/39,457
6. Step 6: Final answer
   x = 78,066.00