Finding the Third Proportional to 429,244.50 and 847,680

Step by Step Solution

1. Step 1: Write the proportion equation
   429,244.50 : 847,680 = 847,680 : x
2. Step 2: Convert to fraction form
   429,244.50/847,680 = 847,680/x
3. Step 3: Cross multiply
   429,244.50x = 847,680 × 847,680
4. Step 4: Simplify right side
   429,244.50x = 718,561,382,400
5. Step 5: Solve for x
   x = 718,561,382,400/429,244.50
6. Step 6: Final answer
   x = 1,674,014.19