Finding the Third Proportional to 21,909,172 and 34,103,666

Step by Step Solution

1. Step 1: Write the proportion equation
   21,909,172 : 34,103,666 = 34,103,666 : x
2. Step 2: Convert to fraction form
   21,909,172/34,103,666 = 34,103,666/x
3. Step 3: Cross multiply
   21,909,172x = 34,103,666 × 34,103,666
4. Step 4: Simplify right side
   21,909,172x = 1,163,060,034,639,556
5. Step 5: Solve for x
   x = 1,163,060,034,639,556/21,909,172
6. Step 6: Final answer
   x = 53,085,531.24