Finding the Third Proportional to 56,280 and 120,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,280 : 120,091.50 = 120,091.50 : x
2. Step 2: Convert to fraction form
   56,280/120,091.50 = 120,091.50/x
3. Step 3: Cross multiply
   56,280x = 120,091.50 × 120,091.50
4. Step 4: Simplify right side
   56,280x = 14,421,968,372.25
5. Step 5: Solve for x
   x = 14,421,968,372.25/56,280
6. Step 6: Final answer
   x = 256,253.88