Finding the Third Proportional to 42,443.50 and 64,588

Step by Step Solution

1. Step 1: Write the proportion equation
   42,443.50 : 64,588 = 64,588 : x
2. Step 2: Convert to fraction form
   42,443.50/64,588 = 64,588/x
3. Step 3: Cross multiply
   42,443.50x = 64,588 × 64,588
4. Step 4: Simplify right side
   42,443.50x = 4,171,609,744
5. Step 5: Solve for x
   x = 4,171,609,744/42,443.50
6. Step 6: Final answer
   x = 98,286.19