Finding the Third Proportional to 30,561.05 and 64,801.27

Step by Step Solution

1. Step 1: Write the proportion equation
   30,561.05 : 64,801.27 = 64,801.27 : x
2. Step 2: Convert to fraction form
   30,561.05/64,801.27 = 64,801.27/x
3. Step 3: Cross multiply
   30,561.05x = 64,801.27 × 64,801.27
4. Step 4: Simplify right side
   30,561.05x = 4,199,204,026.60
5. Step 5: Solve for x
   x = 4,199,204,026.60/30,561.05
6. Step 6: Final answer
   x = 137,403.80