Finding the Third Proportional to 921,312 and 1,993,536

Step by Step Solution

1. Step 1: Write the proportion equation
   921,312 : 1,993,536 = 1,993,536 : x
2. Step 2: Convert to fraction form
   921,312/1,993,536 = 1,993,536/x
3. Step 3: Cross multiply
   921,312x = 1,993,536 × 1,993,536
4. Step 4: Simplify right side
   921,312x = 3,974,185,783,296
5. Step 5: Solve for x
   x = 3,974,185,783,296/921,312
6. Step 6: Final answer
   x = 4,313,615.56