Finding the Third Proportional to 20,042,240 and 42,918,828

Step by Step Solution

1. Step 1: Write the proportion equation
   20,042,240 : 42,918,828 = 42,918,828 : x
2. Step 2: Convert to fraction form
   20,042,240/42,918,828 = 42,918,828/x
3. Step 3: Cross multiply
   20,042,240x = 42,918,828 × 42,918,828
4. Step 4: Simplify right side
   20,042,240x = 1,842,025,796,893,584
5. Step 5: Solve for x
   x = 1,842,025,796,893,584/20,042,240
6. Step 6: Final answer
   x = 91,907,181.88