Finding the Third Proportional to 42,607.50 and 58,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,607.50 : 58,443.50 = 58,443.50 : x
2. Step 2: Convert to fraction form
   42,607.50/58,443.50 = 58,443.50/x
3. Step 3: Cross multiply
   42,607.50x = 58,443.50 × 58,443.50
4. Step 4: Simplify right side
   42,607.50x = 3,415,642,692.25
5. Step 5: Solve for x
   x = 3,415,642,692.25/42,607.50
6. Step 6: Final answer
   x = 80,165.29