Finding the Third Proportional to 72,213 and 155,843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,213 : 155,843.50 = 155,843.50 : x
2. Step 2: Convert to fraction form
   72,213/155,843.50 = 155,843.50/x
3. Step 3: Cross multiply
   72,213x = 155,843.50 × 155,843.50
4. Step 4: Simplify right side
   72,213x = 24,287,196,492.25
5. Step 5: Solve for x
   x = 24,287,196,492.25/72,213
6. Step 6: Final answer
   x = 336,327.21