Finding the Third Proportional to 29,693.46 and 64,028.60

Step by Step Solution

1. Step 1: Write the proportion equation
   29,693.46 : 64,028.60 = 64,028.60 : x
2. Step 2: Convert to fraction form
   29,693.46/64,028.60 = 64,028.60/x
3. Step 3: Cross multiply
   29,693.46x = 64,028.60 × 64,028.60
4. Step 4: Simplify right side
   29,693.46x = 4,099,661,818.05
5. Step 5: Solve for x
   x = 4,099,661,818.05/29,693.46
6. Step 6: Final answer
   x = 138,066.15