Finding the Third Proportional to 118,404 and 253,602

Step by Step Solution

1. Step 1: Write the proportion equation
   118,404 : 253,602 = 253,602 : x
2. Step 2: Convert to fraction form
   118,404/253,602 = 253,602/x
3. Step 3: Cross multiply
   118,404x = 253,602 × 253,602
4. Step 4: Simplify right side
   118,404x = 64,313,974,404
5. Step 5: Solve for x
   x = 64,313,974,404/118,404
6. Step 6: Final answer
   x = 543,174.00