Finding the Third Proportional to 162,396 and 354,302.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,396 : 354,302.50 = 354,302.50 : x
2. Step 2: Convert to fraction form
   162,396/354,302.50 = 354,302.50/x
3. Step 3: Cross multiply
   162,396x = 354,302.50 × 354,302.50
4. Step 4: Simplify right side
   162,396x = 125,530,261,506.25
5. Step 5: Solve for x
   x = 125,530,261,506.25/162,396
6. Step 6: Final answer
   x = 772,988.63