Finding the Third Proportional to 56,443.50 and 133,724.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,443.50 : 133,724.25 = 133,724.25 : x
2. Step 2: Convert to fraction form
   56,443.50/133,724.25 = 133,724.25/x
3. Step 3: Cross multiply
   56,443.50x = 133,724.25 × 133,724.25
4. Step 4: Simplify right side
   56,443.50x = 17,882,175,038.06
5. Step 5: Solve for x
   x = 17,882,175,038.06/56,443.50
6. Step 6: Final answer
   x = 316,815.49