Finding the Third Proportional to 13,909,066 and 21,276,668

Step by Step Solution

1. Step 1: Write the proportion equation
   13,909,066 : 21,276,668 = 21,276,668 : x
2. Step 2: Convert to fraction form
   13,909,066/21,276,668 = 21,276,668/x
3. Step 3: Cross multiply
   13,909,066x = 21,276,668 × 21,276,668
4. Step 4: Simplify right side
   13,909,066x = 452,696,601,182,224
5. Step 5: Solve for x
   x = 452,696,601,182,224/13,909,066
6. Step 6: Final answer
   x = 32,546,872.75