Finding the Third Proportional to 1,000,457 and 2,190,636

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,457 : 2,190,636 = 2,190,636 : x
2. Step 2: Convert to fraction form
   1,000,457/2,190,636 = 2,190,636/x
3. Step 3: Cross multiply
   1,000,457x = 2,190,636 × 2,190,636
4. Step 4: Simplify right side
   1,000,457x = 4,798,886,084,496
5. Step 5: Solve for x
   x = 4,798,886,084,496/1,000,457
6. Step 6: Final answer
   x = 4,796,694.00