Finding the Third Proportional to 42,001 and 64,985

Step by Step Solution

1. Step 1: Write the proportion equation
   42,001 : 64,985 = 64,985 : x
2. Step 2: Convert to fraction form
   42,001/64,985 = 64,985/x
3. Step 3: Cross multiply
   42,001x = 64,985 × 64,985
4. Step 4: Simplify right side
   42,001x = 4,223,050,225
5. Step 5: Solve for x
   x = 4,223,050,225/42,001
6. Step 6: Final answer
   x = 100,546.42