Finding the Third Proportional to 155,421 and 236,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,421 : 236,167.50 = 236,167.50 : x
2. Step 2: Convert to fraction form
   155,421/236,167.50 = 236,167.50/x
3. Step 3: Cross multiply
   155,421x = 236,167.50 × 236,167.50
4. Step 4: Simplify right side
   155,421x = 55,775,088,056.25
5. Step 5: Solve for x
   x = 55,775,088,056.25/155,421
6. Step 6: Final answer
   x = 358,864.56