Finding the Third Proportional to 621,132 and 912,010

Step by Step Solution

1. Step 1: Write the proportion equation
   621,132 : 912,010 = 912,010 : x
2. Step 2: Convert to fraction form
   621,132/912,010 = 912,010/x
3. Step 3: Cross multiply
   621,132x = 912,010 × 912,010
4. Step 4: Simplify right side
   621,132x = 831,762,240,100
5. Step 5: Solve for x
   x = 831,762,240,100/621,132
6. Step 6: Final answer
   x = 1,339,107.05