Finding the Third Proportional to 30,158.06 and 64,456.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,158.06 : 64,456.88 = 64,456.88 : x
2. Step 2: Convert to fraction form
   30,158.06/64,456.88 = 64,456.88/x
3. Step 3: Cross multiply
   30,158.06x = 64,456.88 × 64,456.88
4. Step 4: Simplify right side
   30,158.06x = 4,154,688,734.77
5. Step 5: Solve for x
   x = 4,154,688,734.77/30,158.06
6. Step 6: Final answer
   x = 137,763.78