Finding the Third Proportional to 40,812.50 and 59,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,812.50 : 59,820.50 = 59,820.50 : x
2. Step 2: Convert to fraction form
   40,812.50/59,820.50 = 59,820.50/x
3. Step 3: Cross multiply
   40,812.50x = 59,820.50 × 59,820.50
4. Step 4: Simplify right side
   40,812.50x = 3,578,492,220.25
5. Step 5: Solve for x
   x = 3,578,492,220.25/40,812.50
6. Step 6: Final answer
   x = 87,681.28