Finding the Third Proportional to 183,485 and 258,386.50

Step by Step Solution

1. Step 1: Write the proportion equation
   183,485 : 258,386.50 = 258,386.50 : x
2. Step 2: Convert to fraction form
   183,485/258,386.50 = 258,386.50/x
3. Step 3: Cross multiply
   183,485x = 258,386.50 × 258,386.50
4. Step 4: Simplify right side
   183,485x = 66,763,583,382.25
5. Step 5: Solve for x
   x = 66,763,583,382.25/183,485
6. Step 6: Final answer
   x = 363,863.99