Finding the Third Proportional to 23,953.50 and 42,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,953.50 : 42,985.50 = 42,985.50 : x
2. Step 2: Convert to fraction form
   23,953.50/42,985.50 = 42,985.50/x
3. Step 3: Cross multiply
   23,953.50x = 42,985.50 × 42,985.50
4. Step 4: Simplify right side
   23,953.50x = 1,847,753,210.25
5. Step 5: Solve for x
   x = 1,847,753,210.25/23,953.50
6. Step 6: Final answer
   x = 77,139.17