Finding the Third Proportional to 63,076 and 139,272

Step by Step Solution

1. Step 1: Write the proportion equation
   63,076 : 139,272 = 139,272 : x
2. Step 2: Convert to fraction form
   63,076/139,272 = 139,272/x
3. Step 3: Cross multiply
   63,076x = 139,272 × 139,272
4. Step 4: Simplify right side
   63,076x = 19,396,689,984
5. Step 5: Solve for x
   x = 19,396,689,984/63,076
6. Step 6: Final answer
   x = 307,513.00