Finding the Third Proportional to 1,971,888 and 4,242,672

Step by Step Solution

1. Step 1: Write the proportion equation
   1,971,888 : 4,242,672 = 4,242,672 : x
2. Step 2: Convert to fraction form
   1,971,888/4,242,672 = 4,242,672/x
3. Step 3: Cross multiply
   1,971,888x = 4,242,672 × 4,242,672
4. Step 4: Simplify right side
   1,971,888x = 18,000,265,699,584
5. Step 5: Solve for x
   x = 18,000,265,699,584/1,971,888
6. Step 6: Final answer
   x = 9,128,442.23