Finding the Third Proportional to 20,042,080 and 42,918,513

Step by Step Solution

1. Step 1: Write the proportion equation
   20,042,080 : 42,918,513 = 42,918,513 : x
2. Step 2: Convert to fraction form
   20,042,080/42,918,513 = 42,918,513/x
3. Step 3: Cross multiply
   20,042,080x = 42,918,513 × 42,918,513
4. Step 4: Simplify right side
   20,042,080x = 1,841,998,758,131,169
5. Step 5: Solve for x
   x = 1,841,998,758,131,169/20,042,080
6. Step 6: Final answer
   x = 91,906,566.49