Finding the Third Proportional to 28,460.25 and 42,782.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,460.25 : 42,782.25 = 42,782.25 : x
2. Step 2: Convert to fraction form
   28,460.25/42,782.25 = 42,782.25/x
3. Step 3: Cross multiply
   28,460.25x = 42,782.25 × 42,782.25
4. Step 4: Simplify right side
   28,460.25x = 1,830,320,915.06
5. Step 5: Solve for x
   x = 1,830,320,915.06/28,460.25
6. Step 6: Final answer
   x = 64,311.48