Finding the Third Proportional to 21,803,420 and 31,758,706

Step by Step Solution

1. Step 1: Write the proportion equation
   21,803,420 : 31,758,706 = 31,758,706 : x
2. Step 2: Convert to fraction form
   21,803,420/31,758,706 = 31,758,706/x
3. Step 3: Cross multiply
   21,803,420x = 31,758,706 × 31,758,706
4. Step 4: Simplify right side
   21,803,420x = 1,008,615,406,794,436
5. Step 5: Solve for x
   x = 1,008,615,406,794,436/21,803,420
6. Step 6: Final answer
   x = 46,259,504.55