Finding the Third Proportional to 439,725.50 and 696,851

Step by Step Solution

1. Step 1: Write the proportion equation
   439,725.50 : 696,851 = 696,851 : x
2. Step 2: Convert to fraction form
   439,725.50/696,851 = 696,851/x
3. Step 3: Cross multiply
   439,725.50x = 696,851 × 696,851
4. Step 4: Simplify right side
   439,725.50x = 485,601,316,201
5. Step 5: Solve for x
   x = 485,601,316,201/439,725.50
6. Step 6: Final answer
   x = 1,104,328.31