Finding the Third Proportional to 863,308 and 1,877,840

Step by Step Solution

1. Step 1: Write the proportion equation
   863,308 : 1,877,840 = 1,877,840 : x
2. Step 2: Convert to fraction form
   863,308/1,877,840 = 1,877,840/x
3. Step 3: Cross multiply
   863,308x = 1,877,840 × 1,877,840
4. Step 4: Simplify right side
   863,308x = 3,526,283,065,600
5. Step 5: Solve for x
   x = 3,526,283,065,600/863,308
6. Step 6: Final answer
   x = 4,084,617.62