Finding the Third Proportional to 200,725 and 302,788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,725 : 302,788.50 = 302,788.50 : x
2. Step 2: Convert to fraction form
   200,725/302,788.50 = 302,788.50/x
3. Step 3: Cross multiply
   200,725x = 302,788.50 × 302,788.50
4. Step 4: Simplify right side
   200,725x = 91,680,875,732.25
5. Step 5: Solve for x
   x = 91,680,875,732.25/200,725
6. Step 6: Final answer
   x = 456,748.66