Finding the Third Proportional to 117,005.50 and 276,111

Step by Step Solution

1. Step 1: Write the proportion equation
   117,005.50 : 276,111 = 276,111 : x
2. Step 2: Convert to fraction form
   117,005.50/276,111 = 276,111/x
3. Step 3: Cross multiply
   117,005.50x = 276,111 × 276,111
4. Step 4: Simplify right side
   117,005.50x = 76,237,284,321
5. Step 5: Solve for x
   x = 76,237,284,321/117,005.50
6. Step 6: Final answer
   x = 651,570.09