Finding the Third Proportional to 334,320 and 488,677.50

Step by Step Solution

1. Step 1: Write the proportion equation
   334,320 : 488,677.50 = 488,677.50 : x
2. Step 2: Convert to fraction form
   334,320/488,677.50 = 488,677.50/x
3. Step 3: Cross multiply
   334,320x = 488,677.50 × 488,677.50
4. Step 4: Simplify right side
   334,320x = 238,805,699,006.25
5. Step 5: Solve for x
   x = 238,805,699,006.25/334,320
6. Step 6: Final answer
   x = 714,302.76