Finding the Third Proportional to 42,997 and 64,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,997 : 64,747.50 = 64,747.50 : x
2. Step 2: Convert to fraction form
   42,997/64,747.50 = 64,747.50/x
3. Step 3: Cross multiply
   42,997x = 64,747.50 × 64,747.50
4. Step 4: Simplify right side
   42,997x = 4,192,238,756.25
5. Step 5: Solve for x
   x = 4,192,238,756.25/42,997
6. Step 6: Final answer
   x = 97,500.73