Finding the Third Proportional to 79,209 and 164,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,209 : 164,947.50 = 164,947.50 : x
2. Step 2: Convert to fraction form
   79,209/164,947.50 = 164,947.50/x
3. Step 3: Cross multiply
   79,209x = 164,947.50 × 164,947.50
4. Step 4: Simplify right side
   79,209x = 27,207,677,756.25
5. Step 5: Solve for x
   x = 27,207,677,756.25/79,209
6. Step 6: Final answer
   x = 343,492.25