Finding the Third Proportional to 458,124 and 699,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   458,124 : 699,031.50 = 699,031.50 : x
2. Step 2: Convert to fraction form
   458,124/699,031.50 = 699,031.50/x
3. Step 3: Cross multiply
   458,124x = 699,031.50 × 699,031.50
4. Step 4: Simplify right side
   458,124x = 488,645,037,992.25
5. Step 5: Solve for x
   x = 488,645,037,992.25/458,124
6. Step 6: Final answer
   x = 1,066,621.78