Finding the Third Proportional to 85,517 and 183,487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,517 : 183,487.50 = 183,487.50 : x
2. Step 2: Convert to fraction form
   85,517/183,487.50 = 183,487.50/x
3. Step 3: Cross multiply
   85,517x = 183,487.50 × 183,487.50
4. Step 4: Simplify right side
   85,517x = 33,667,662,656.25
5. Step 5: Solve for x
   x = 33,667,662,656.25/85,517
6. Step 6: Final answer
   x = 393,695.55