Finding the Third Proportional to 118,300.13 and 258,010.88

Step by Step Solution

1. Step 1: Write the proportion equation
   118,300.13 : 258,010.88 = 258,010.88 : x
2. Step 2: Convert to fraction form
   118,300.13/258,010.88 = 258,010.88/x
3. Step 3: Cross multiply
   118,300.13x = 258,010.88 × 258,010.88
4. Step 4: Simplify right side
   118,300.13x = 66,569,611,618.27
5. Step 5: Solve for x
   x = 66,569,611,618.27/118,300.13
6. Step 6: Final answer
   x = 562,718.02