Finding the Third Proportional to 118,385 and 260,098

Step by Step Solution

1. Step 1: Write the proportion equation
   118,385 : 260,098 = 260,098 : x
2. Step 2: Convert to fraction form
   118,385/260,098 = 260,098/x
3. Step 3: Cross multiply
   118,385x = 260,098 × 260,098
4. Step 4: Simplify right side
   118,385x = 67,650,969,604
5. Step 5: Solve for x
   x = 67,650,969,604/118,385
6. Step 6: Final answer
   x = 571,448.83