Finding the Third Proportional to 183,478.50 and 258,380

Step by Step Solution

1. Step 1: Write the proportion equation
   183,478.50 : 258,380 = 258,380 : x
2. Step 2: Convert to fraction form
   183,478.50/258,380 = 258,380/x
3. Step 3: Cross multiply
   183,478.50x = 258,380 × 258,380
4. Step 4: Simplify right side
   183,478.50x = 66,760,224,400
5. Step 5: Solve for x
   x = 66,760,224,400/183,478.50
6. Step 6: Final answer
   x = 363,858.57