Finding the Third Proportional to 134,648 and 286,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   134,648 : 286,791.50 = 286,791.50 : x
2. Step 2: Convert to fraction form
   134,648/286,791.50 = 286,791.50/x
3. Step 3: Cross multiply
   134,648x = 286,791.50 × 286,791.50
4. Step 4: Simplify right side
   134,648x = 82,249,364,472.25
5. Step 5: Solve for x
   x = 82,249,364,472.25/134,648
6. Step 6: Final answer
   x = 610,847.28