Finding the Third Proportional to 849,912 and 1,856,640

Step by Step Solution

1. Step 1: Write the proportion equation
   849,912 : 1,856,640 = 1,856,640 : x
2. Step 2: Convert to fraction form
   849,912/1,856,640 = 1,856,640/x
3. Step 3: Cross multiply
   849,912x = 1,856,640 × 1,856,640
4. Step 4: Simplify right side
   849,912x = 3,447,112,089,600
5. Step 5: Solve for x
   x = 3,447,112,089,600/849,912
6. Step 6: Final answer
   x = 4,055,845.89