Finding the Third Proportional to 916,172 and 1,426,608

Step by Step Solution

1. Step 1: Write the proportion equation
   916,172 : 1,426,608 = 1,426,608 : x
2. Step 2: Convert to fraction form
   916,172/1,426,608 = 1,426,608/x
3. Step 3: Cross multiply
   916,172x = 1,426,608 × 1,426,608
4. Step 4: Simplify right side
   916,172x = 2,035,210,385,664
5. Step 5: Solve for x
   x = 2,035,210,385,664/916,172
6. Step 6: Final answer
   x = 2,221,428.28