Finding the Third Proportional to 118,300.88 and 258,012.75

Step by Step Solution

1. Step 1: Write the proportion equation
   118,300.88 : 258,012.75 = 258,012.75 : x
2. Step 2: Convert to fraction form
   118,300.88/258,012.75 = 258,012.75/x
3. Step 3: Cross multiply
   118,300.88x = 258,012.75 × 258,012.75
4. Step 4: Simplify right side
   118,300.88x = 66,570,579,162.56
5. Step 5: Solve for x
   x = 66,570,579,162.56/118,300.88
6. Step 6: Final answer
   x = 562,722.63