Finding the Third Proportional to 85,158 and 183,307.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,158 : 183,307.50 = 183,307.50 : x
2. Step 2: Convert to fraction form
   85,158/183,307.50 = 183,307.50/x
3. Step 3: Cross multiply
   85,158x = 183,307.50 × 183,307.50
4. Step 4: Simplify right side
   85,158x = 33,601,639,556.25
5. Step 5: Solve for x
   x = 33,601,639,556.25/85,158
6. Step 6: Final answer
   x = 394,579.95