Finding the Third Proportional to 56,485.50 and 117,649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,485.50 : 117,649.50 = 117,649.50 : x
2. Step 2: Convert to fraction form
   56,485.50/117,649.50 = 117,649.50/x
3. Step 3: Cross multiply
   56,485.50x = 117,649.50 × 117,649.50
4. Step 4: Simplify right side
   56,485.50x = 13,841,404,850.25
5. Step 5: Solve for x
   x = 13,841,404,850.25/56,485.50
6. Step 6: Final answer
   x = 245,043.50