Finding the Third Proportional to 118,302 and 253,200

Step by Step Solution

1. Step 1: Write the proportion equation
   118,302 : 253,200 = 253,200 : x
2. Step 2: Convert to fraction form
   118,302/253,200 = 253,200/x
3. Step 3: Cross multiply
   118,302x = 253,200 × 253,200
4. Step 4: Simplify right side
   118,302x = 64,110,240,000
5. Step 5: Solve for x
   x = 64,110,240,000/118,302
6. Step 6: Final answer
   x = 541,920.17