Finding the Third Proportional to 20,042,242 and 42,918,832

Step by Step Solution

1. Step 1: Write the proportion equation
   20,042,242 : 42,918,832 = 42,918,832 : x
2. Step 2: Convert to fraction form
   20,042,242/42,918,832 = 42,918,832/x
3. Step 3: Cross multiply
   20,042,242x = 42,918,832 × 42,918,832
4. Step 4: Simplify right side
   20,042,242x = 1,842,026,140,244,224
5. Step 5: Solve for x
   x = 1,842,026,140,244,224/20,042,242
6. Step 6: Final answer
   x = 91,907,189.84