Finding the Third Proportional to 1,000,429 and 2,190,608

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,429 : 2,190,608 = 2,190,608 : x
2. Step 2: Convert to fraction form
   1,000,429/2,190,608 = 2,190,608/x
3. Step 3: Cross multiply
   1,000,429x = 2,190,608 × 2,190,608
4. Step 4: Simplify right side
   1,000,429x = 4,798,763,409,664
5. Step 5: Solve for x
   x = 4,798,763,409,664/1,000,429
6. Step 6: Final answer
   x = 4,796,705.62