Finding the Third Proportional to 900,282 and 1,380,397

Step by Step Solution

1. Step 1: Write the proportion equation
   900,282 : 1,380,397 = 1,380,397 : x
2. Step 2: Convert to fraction form
   900,282/1,380,397 = 1,380,397/x
3. Step 3: Cross multiply
   900,282x = 1,380,397 × 1,380,397
4. Step 4: Simplify right side
   900,282x = 1,905,495,877,609
5. Step 5: Solve for x
   x = 1,905,495,877,609/900,282
6. Step 6: Final answer
   x = 2,116,554.45