Finding the Third Proportional to 28,378 and 40,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,378 : 40,807.50 = 40,807.50 : x
2. Step 2: Convert to fraction form
   28,378/40,807.50 = 40,807.50/x
3. Step 3: Cross multiply
   28,378x = 40,807.50 × 40,807.50
4. Step 4: Simplify right side
   28,378x = 1,665,252,056.25
5. Step 5: Solve for x
   x = 1,665,252,056.25/28,378
6. Step 6: Final answer
   x = 58,681.09