Finding the Third Proportional to 647,385.75 and 980,071.88

Step by Step Solution

1. Step 1: Write the proportion equation
   647,385.75 : 980,071.88 = 980,071.88 : x
2. Step 2: Convert to fraction form
   647,385.75/980,071.88 = 980,071.88/x
3. Step 3: Cross multiply
   647,385.75x = 980,071.88 × 980,071.88
4. Step 4: Simplify right side
   647,385.75x = 960,540,880,166.02
5. Step 5: Solve for x
   x = 960,540,880,166.02/647,385.75
6. Step 6: Final answer
   x = 1,483,722.62