Finding the Third Proportional to 453,709 and 696,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   453,709 : 696,425.50 = 696,425.50 : x
2. Step 2: Convert to fraction form
   453,709/696,425.50 = 696,425.50/x
3. Step 3: Cross multiply
   453,709x = 696,425.50 × 696,425.50
4. Step 4: Simplify right side
   453,709x = 485,008,477,050.25
5. Step 5: Solve for x
   x = 485,008,477,050.25/453,709
6. Step 6: Final answer
   x = 1,068,985.80