Finding the Third Proportional to 59,680 and 91,248

Step by Step Solution

1. Step 1: Write the proportion equation
   59,680 : 91,248 = 91,248 : x
2. Step 2: Convert to fraction form
   59,680/91,248 = 91,248/x
3. Step 3: Cross multiply
   59,680x = 91,248 × 91,248
4. Step 4: Simplify right side
   59,680x = 8,326,197,504
5. Step 5: Solve for x
   x = 8,326,197,504/59,680
6. Step 6: Final answer
   x = 139,514.03