Finding the Third Proportional to 162,069 and 256,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,069 : 256,426.50 = 256,426.50 : x
2. Step 2: Convert to fraction form
   162,069/256,426.50 = 256,426.50/x
3. Step 3: Cross multiply
   162,069x = 256,426.50 × 256,426.50
4. Step 4: Simplify right side
   162,069x = 65,754,549,902.25
5. Step 5: Solve for x
   x = 65,754,549,902.25/162,069
6. Step 6: Final answer
   x = 405,719.48