Finding the Third Proportional to 42,391.50 and 64,134

Step by Step Solution

1. Step 1: Write the proportion equation
   42,391.50 : 64,134 = 64,134 : x
2. Step 2: Convert to fraction form
   42,391.50/64,134 = 64,134/x
3. Step 3: Cross multiply
   42,391.50x = 64,134 × 64,134
4. Step 4: Simplify right side
   42,391.50x = 4,113,169,956
5. Step 5: Solve for x
   x = 4,113,169,956/42,391.50
6. Step 6: Final answer
   x = 97,028.18