Finding the Third Proportional to 56,197 and 120,390.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,197 : 120,390.50 = 120,390.50 : x
2. Step 2: Convert to fraction form
   56,197/120,390.50 = 120,390.50/x
3. Step 3: Cross multiply
   56,197x = 120,390.50 × 120,390.50
4. Step 4: Simplify right side
   56,197x = 14,493,872,490.25
5. Step 5: Solve for x
   x = 14,493,872,490.25/56,197
6. Step 6: Final answer
   x = 257,911.85