Finding the Third Proportional to 47,355 and 78,916.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,355 : 78,916.50 = 78,916.50 : x
2. Step 2: Convert to fraction form
   47,355/78,916.50 = 78,916.50/x
3. Step 3: Cross multiply
   47,355x = 78,916.50 × 78,916.50
4. Step 4: Simplify right side
   47,355x = 6,227,813,972.25
5. Step 5: Solve for x
   x = 6,227,813,972.25/47,355
6. Step 6: Final answer
   x = 131,513.33