Finding the Third Proportional to 360,072 and 580,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   360,072 : 580,009.50 = 580,009.50 : x
2. Step 2: Convert to fraction form
   360,072/580,009.50 = 580,009.50/x
3. Step 3: Cross multiply
   360,072x = 580,009.50 × 580,009.50
4. Step 4: Simplify right side
   360,072x = 336,411,020,090.25
5. Step 5: Solve for x
   x = 336,411,020,090.25/360,072
6. Step 6: Final answer
   x = 934,288.20