Finding the Third Proportional to 521,321 and 1,217,961

Step by Step Solution

1. Step 1: Write the proportion equation
   521,321 : 1,217,961 = 1,217,961 : x
2. Step 2: Convert to fraction form
   521,321/1,217,961 = 1,217,961/x
3. Step 3: Cross multiply
   521,321x = 1,217,961 × 1,217,961
4. Step 4: Simplify right side
   521,321x = 1,483,428,997,521
5. Step 5: Solve for x
   x = 1,483,428,997,521/521,321
6. Step 6: Final answer
   x = 2,845,519.36