Finding the Third Proportional to 905,580 and 1,225,510

Step by Step Solution

1. Step 1: Write the proportion equation
   905,580 : 1,225,510 = 1,225,510 : x
2. Step 2: Convert to fraction form
   905,580/1,225,510 = 1,225,510/x
3. Step 3: Cross multiply
   905,580x = 1,225,510 × 1,225,510
4. Step 4: Simplify right side
   905,580x = 1,501,874,760,100
5. Step 5: Solve for x
   x = 1,501,874,760,100/905,580
6. Step 6: Final answer
   x = 1,658,467.24