Finding the Third Proportional to 647,374.50 and 980,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   647,374.50 : 980,059.50 = 980,059.50 : x
2. Step 2: Convert to fraction form
   647,374.50/980,059.50 = 980,059.50/x
3. Step 3: Cross multiply
   647,374.50x = 980,059.50 × 980,059.50
4. Step 4: Simplify right side
   647,374.50x = 960,516,623,540.25
5. Step 5: Solve for x
   x = 960,516,623,540.25/647,374.50
6. Step 6: Final answer
   x = 1,483,710.93