Finding the Third Proportional to 25,487.16 and 42,122.53

Step by Step Solution

1. Step 1: Write the proportion equation
   25,487.16 : 42,122.53 = 42,122.53 : x
2. Step 2: Convert to fraction form
   25,487.16/42,122.53 = 42,122.53/x
3. Step 3: Cross multiply
   25,487.16x = 42,122.53 × 42,122.53
4. Step 4: Simplify right side
   25,487.16x = 1,774,307,638.91
5. Step 5: Solve for x
   x = 1,774,307,638.91/25,487.16
6. Step 6: Final answer
   x = 69,615.76