Finding the Third Proportional to 193,503 and 291,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   193,503 : 291,388.50 = 291,388.50 : x
2. Step 2: Convert to fraction form
   193,503/291,388.50 = 291,388.50/x
3. Step 3: Cross multiply
   193,503x = 291,388.50 × 291,388.50
4. Step 4: Simplify right side
   193,503x = 84,907,257,932.25
5. Step 5: Solve for x
   x = 84,907,257,932.25/193,503
6. Step 6: Final answer
   x = 438,790.40