Finding the Third Proportional to 479,664 and 692,977.50

Step by Step Solution

1. Step 1: Write the proportion equation
   479,664 : 692,977.50 = 692,977.50 : x
2. Step 2: Convert to fraction form
   479,664/692,977.50 = 692,977.50/x
3. Step 3: Cross multiply
   479,664x = 692,977.50 × 692,977.50
4. Step 4: Simplify right side
   479,664x = 480,217,815,506.25
5. Step 5: Solve for x
   x = 480,217,815,506.25/479,664
6. Step 6: Final answer
   x = 1,001,154.59