Finding the Third Proportional to 42,669 and 61,462.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,669 : 61,462.50 = 61,462.50 : x
2. Step 2: Convert to fraction form
   42,669/61,462.50 = 61,462.50/x
3. Step 3: Cross multiply
   42,669x = 61,462.50 × 61,462.50
4. Step 4: Simplify right side
   42,669x = 3,777,638,906.25
5. Step 5: Solve for x
   x = 3,777,638,906.25/42,669
6. Step 6: Final answer
   x = 88,533.57