Finding the Third Proportional to 112,784.50 and 200,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,784.50 : 200,486.50 = 200,486.50 : x
2. Step 2: Convert to fraction form
   112,784.50/200,486.50 = 200,486.50/x
3. Step 3: Cross multiply
   112,784.50x = 200,486.50 × 200,486.50
4. Step 4: Simplify right side
   112,784.50x = 40,194,836,682.25
5. Step 5: Solve for x
   x = 40,194,836,682.25/112,784.50
6. Step 6: Final answer
   x = 356,386.18