Finding the Third Proportional to 978,672 and 1,430,242

Step by Step Solution

1. Step 1: Write the proportion equation
   978,672 : 1,430,242 = 1,430,242 : x
2. Step 2: Convert to fraction form
   978,672/1,430,242 = 1,430,242/x
3. Step 3: Cross multiply
   978,672x = 1,430,242 × 1,430,242
4. Step 4: Simplify right side
   978,672x = 2,045,592,178,564
5. Step 5: Solve for x
   x = 2,045,592,178,564/978,672
6. Step 6: Final answer
   x = 2,090,171.35