Finding the Third Proportional to 38,705.50 and 84,787.50

Step by Step Solution

1. Step 1: Write the proportion equation
   38,705.50 : 84,787.50 = 84,787.50 : x
2. Step 2: Convert to fraction form
   38,705.50/84,787.50 = 84,787.50/x
3. Step 3: Cross multiply
   38,705.50x = 84,787.50 × 84,787.50
4. Step 4: Simplify right side
   38,705.50x = 7,188,920,156.25
5. Step 5: Solve for x
   x = 7,188,920,156.25/38,705.50
6. Step 6: Final answer
   x = 185,733.81