Finding the Third Proportional to 920,672 and 1,969,272

Step by Step Solution

1. Step 1: Write the proportion equation
   920,672 : 1,969,272 = 1,969,272 : x
2. Step 2: Convert to fraction form
   920,672/1,969,272 = 1,969,272/x
3. Step 3: Cross multiply
   920,672x = 1,969,272 × 1,969,272
4. Step 4: Simplify right side
   920,672x = 3,878,032,209,984
5. Step 5: Solve for x
   x = 3,878,032,209,984/920,672
6. Step 6: Final answer
   x = 4,212,175.68