Finding the Third Proportional to 25,545 and 42,214.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,545 : 42,214.50 = 42,214.50 : x
2. Step 2: Convert to fraction form
   25,545/42,214.50 = 42,214.50/x
3. Step 3: Cross multiply
   25,545x = 42,214.50 × 42,214.50
4. Step 4: Simplify right side
   25,545x = 1,782,064,010.25
5. Step 5: Solve for x
   x = 1,782,064,010.25/25,545
6. Step 6: Final answer
   x = 69,761.75