Finding the Third Proportional to 162,315 and 354,154.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,315 : 354,154.50 = 354,154.50 : x
2. Step 2: Convert to fraction form
   162,315/354,154.50 = 354,154.50/x
3. Step 3: Cross multiply
   162,315x = 354,154.50 × 354,154.50
4. Step 4: Simplify right side
   162,315x = 125,425,409,870.25
5. Step 5: Solve for x
   x = 125,425,409,870.25/162,315
6. Step 6: Final answer
   x = 772,728.40