Finding the Third Proportional to 869,490 and 1,854,536

Step by Step Solution

1. Step 1: Write the proportion equation
   869,490 : 1,854,536 = 1,854,536 : x
2. Step 2: Convert to fraction form
   869,490/1,854,536 = 1,854,536/x
3. Step 3: Cross multiply
   869,490x = 1,854,536 × 1,854,536
4. Step 4: Simplify right side
   869,490x = 3,439,303,775,296
5. Step 5: Solve for x
   x = 3,439,303,775,296/869,490
6. Step 6: Final answer
   x = 3,955,541.50