Finding the Third Proportional to 60,495 and 138,853.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,495 : 138,853.50 = 138,853.50 : x
2. Step 2: Convert to fraction form
   60,495/138,853.50 = 138,853.50/x
3. Step 3: Cross multiply
   60,495x = 138,853.50 × 138,853.50
4. Step 4: Simplify right side
   60,495x = 19,280,294,462.25
5. Step 5: Solve for x
   x = 19,280,294,462.25/60,495
6. Step 6: Final answer
   x = 318,708.89