Finding the Third Proportional to 907,272 and 1,977,840

Step by Step Solution

1. Step 1: Write the proportion equation
   907,272 : 1,977,840 = 1,977,840 : x
2. Step 2: Convert to fraction form
   907,272/1,977,840 = 1,977,840/x
3. Step 3: Cross multiply
   907,272x = 1,977,840 × 1,977,840
4. Step 4: Simplify right side
   907,272x = 3,911,851,065,600
5. Step 5: Solve for x
   x = 3,911,851,065,600/907,272
6. Step 6: Final answer
   x = 4,311,662.95