Finding the Third Proportional to 903,269.50 and 1,298,315

Step by Step Solution

1. Step 1: Write the proportion equation
   903,269.50 : 1,298,315 = 1,298,315 : x
2. Step 2: Convert to fraction form
   903,269.50/1,298,315 = 1,298,315/x
3. Step 3: Cross multiply
   903,269.50x = 1,298,315 × 1,298,315
4. Step 4: Simplify right side
   903,269.50x = 1,685,621,839,225
5. Step 5: Solve for x
   x = 1,685,621,839,225/903,269.50
6. Step 6: Final answer
   x = 1,866,133.90