Finding the Third Proportional to 63,468.28 and 139,392

Step by Step Solution

1. Step 1: Write the proportion equation
   63,468.28 : 139,392 = 139,392 : x
2. Step 2: Convert to fraction form
   63,468.28/139,392 = 139,392/x
3. Step 3: Cross multiply
   63,468.28x = 139,392 × 139,392
4. Step 4: Simplify right side
   63,468.28x = 19,430,129,664
5. Step 5: Solve for x
   x = 19,430,129,664/63,468.28
6. Step 6: Final answer
   x = 306,139.21