Finding the Third Proportional to 56,385 and 133,348.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,385 : 133,348.50 = 133,348.50 : x
2. Step 2: Convert to fraction form
   56,385/133,348.50 = 133,348.50/x
3. Step 3: Cross multiply
   56,385x = 133,348.50 × 133,348.50
4. Step 4: Simplify right side
   56,385x = 17,781,822,452.25
5. Step 5: Solve for x
   x = 17,781,822,452.25/56,385
6. Step 6: Final answer
   x = 315,364.41