Finding the Third Proportional to 48,447 and 65,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   48,447 : 65,434.50 = 65,434.50 : x
2. Step 2: Convert to fraction form
   48,447/65,434.50 = 65,434.50/x
3. Step 3: Cross multiply
   48,447x = 65,434.50 × 65,434.50
4. Step 4: Simplify right side
   48,447x = 4,281,673,790.25
5. Step 5: Solve for x
   x = 4,281,673,790.25/48,447
6. Step 6: Final answer
   x = 88,378.51