Finding the Third Proportional to 900,347 and 1,921,222

Step by Step Solution

1. Step 1: Write the proportion equation
   900,347 : 1,921,222 = 1,921,222 : x
2. Step 2: Convert to fraction form
   900,347/1,921,222 = 1,921,222/x
3. Step 3: Cross multiply
   900,347x = 1,921,222 × 1,921,222
4. Step 4: Simplify right side
   900,347x = 3,691,093,973,284
5. Step 5: Solve for x
   x = 3,691,093,973,284/900,347
6. Step 6: Final answer
   x = 4,099,634.89