Finding the Third Proportional to 42,897 and 64,660.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,897 : 64,660.50 = 64,660.50 : x
2. Step 2: Convert to fraction form
   42,897/64,660.50 = 64,660.50/x
3. Step 3: Cross multiply
   42,897x = 64,660.50 × 64,660.50
4. Step 4: Simplify right side
   42,897x = 4,180,980,260.25
5. Step 5: Solve for x
   x = 4,180,980,260.25/42,897
6. Step 6: Final answer
   x = 97,465.56