Finding the Third Proportional to 220,164 and 365,602.50

Step by Step Solution

1. Step 1: Write the proportion equation
   220,164 : 365,602.50 = 365,602.50 : x
2. Step 2: Convert to fraction form
   220,164/365,602.50 = 365,602.50/x
3. Step 3: Cross multiply
   220,164x = 365,602.50 × 365,602.50
4. Step 4: Simplify right side
   220,164x = 133,665,188,006.25
5. Step 5: Solve for x
   x = 133,665,188,006.25/220,164
6. Step 6: Final answer
   x = 607,116.46