Finding the Third Proportional to 42,972 and 64,260

Step by Step Solution

1. Step 1: Write the proportion equation
   42,972 : 64,260 = 64,260 : x
2. Step 2: Convert to fraction form
   42,972/64,260 = 64,260/x
3. Step 3: Cross multiply
   42,972x = 64,260 × 64,260
4. Step 4: Simplify right side
   42,972x = 4,129,347,600
5. Step 5: Solve for x
   x = 4,129,347,600/42,972
6. Step 6: Final answer
   x = 96,093.91