Finding the Third Proportional to 319,068 and 493,987.50

Step by Step Solution

1. Step 1: Write the proportion equation
   319,068 : 493,987.50 = 493,987.50 : x
2. Step 2: Convert to fraction form
   319,068/493,987.50 = 493,987.50/x
3. Step 3: Cross multiply
   319,068x = 493,987.50 × 493,987.50
4. Step 4: Simplify right side
   319,068x = 244,023,650,156.25
5. Step 5: Solve for x
   x = 244,023,650,156.25/319,068
6. Step 6: Final answer
   x = 764,801.39