Finding the Third Proportional to 56,780 and 119,445.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,780 : 119,445.50 = 119,445.50 : x
2. Step 2: Convert to fraction form
   56,780/119,445.50 = 119,445.50/x
3. Step 3: Cross multiply
   56,780x = 119,445.50 × 119,445.50
4. Step 4: Simplify right side
   56,780x = 14,267,227,470.25
5. Step 5: Solve for x
   x = 14,267,227,470.25/56,780
6. Step 6: Final answer
   x = 251,272.06