Finding the Third Proportional to 117,490.50 and 248,953.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,490.50 : 248,953.50 = 248,953.50 : x
2. Step 2: Convert to fraction form
   117,490.50/248,953.50 = 248,953.50/x
3. Step 3: Cross multiply
   117,490.50x = 248,953.50 × 248,953.50
4. Step 4: Simplify right side
   117,490.50x = 61,977,845,162.25
5. Step 5: Solve for x
   x = 61,977,845,162.25/117,490.50
6. Step 6: Final answer
   x = 527,513.67