Finding the Third Proportional to 403,397 and 869,037.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,397 : 869,037.50 = 869,037.50 : x
2. Step 2: Convert to fraction form
   403,397/869,037.50 = 869,037.50/x
3. Step 3: Cross multiply
   403,397x = 869,037.50 × 869,037.50
4. Step 4: Simplify right side
   403,397x = 755,226,176,406.25
5. Step 5: Solve for x
   x = 755,226,176,406.25/403,397
6. Step 6: Final answer
   x = 1,872,166.07