Finding the Third Proportional to 868,513.50 and 1,913,715

Step by Step Solution

1. Step 1: Write the proportion equation
   868,513.50 : 1,913,715 = 1,913,715 : x
2. Step 2: Convert to fraction form
   868,513.50/1,913,715 = 1,913,715/x
3. Step 3: Cross multiply
   868,513.50x = 1,913,715 × 1,913,715
4. Step 4: Simplify right side
   868,513.50x = 3,662,305,101,225
5. Step 5: Solve for x
   x = 3,662,305,101,225/868,513.50
6. Step 6: Final answer
   x = 4,216,750.92