Finding the Third Proportional to 915,390.50 and 1,993,516

Step by Step Solution

1. Step 1: Write the proportion equation
   915,390.50 : 1,993,516 = 1,993,516 : x
2. Step 2: Convert to fraction form
   915,390.50/1,993,516 = 1,993,516/x
3. Step 3: Cross multiply
   915,390.50x = 1,993,516 × 1,993,516
4. Step 4: Simplify right side
   915,390.50x = 3,974,106,042,256
5. Step 5: Solve for x
   x = 3,974,106,042,256/915,390.50
6. Step 6: Final answer
   x = 4,341,432.47