Finding the Third Proportional to 30,677.63 and 65,725.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,677.63 : 65,725.88 = 65,725.88 : x
2. Step 2: Convert to fraction form
   30,677.63/65,725.88 = 65,725.88/x
3. Step 3: Cross multiply
   30,677.63x = 65,725.88 × 65,725.88
4. Step 4: Simplify right side
   30,677.63x = 4,319,890,644.52
5. Step 5: Solve for x
   x = 4,319,890,644.52/30,677.63
6. Step 6: Final answer
   x = 140,815.68