Finding the Third Proportional to 48,721.50 and 72,886.50

Step by Step Solution

1. Step 1: Write the proportion equation
   48,721.50 : 72,886.50 = 72,886.50 : x
2. Step 2: Convert to fraction form
   48,721.50/72,886.50 = 72,886.50/x
3. Step 3: Cross multiply
   48,721.50x = 72,886.50 × 72,886.50
4. Step 4: Simplify right side
   48,721.50x = 5,312,441,882.25
5. Step 5: Solve for x
   x = 5,312,441,882.25/48,721.50
6. Step 6: Final answer
   x = 109,036.91