Finding the Third Proportional to 361,035 and 561,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,035 : 561,289.50 = 561,289.50 : x
2. Step 2: Convert to fraction form
   361,035/561,289.50 = 561,289.50/x
3. Step 3: Cross multiply
   361,035x = 561,289.50 × 561,289.50
4. Step 4: Simplify right side
   361,035x = 315,045,902,810.25
5. Step 5: Solve for x
   x = 315,045,902,810.25/361,035
6. Step 6: Final answer
   x = 872,618.73