Finding the Third Proportional to 59,116.50 and 86,946.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,116.50 : 86,946.75 = 86,946.75 : x
2. Step 2: Convert to fraction form
   59,116.50/86,946.75 = 86,946.75/x
3. Step 3: Cross multiply
   59,116.50x = 86,946.75 × 86,946.75
4. Step 4: Simplify right side
   59,116.50x = 7,559,737,335.56
5. Step 5: Solve for x
   x = 7,559,737,335.56/59,116.50
6. Step 6: Final answer
   x = 127,878.64