Finding the Third Proportional to 117,113.50 and 260,429

Step by Step Solution

1. Step 1: Write the proportion equation
   117,113.50 : 260,429 = 260,429 : x
2. Step 2: Convert to fraction form
   117,113.50/260,429 = 260,429/x
3. Step 3: Cross multiply
   117,113.50x = 260,429 × 260,429
4. Step 4: Simplify right side
   117,113.50x = 67,823,264,041
5. Step 5: Solve for x
   x = 67,823,264,041/117,113.50
6. Step 6: Final answer
   x = 579,124.22