Finding the Third Proportional to 9,047,866 and 19,721,492

Step by Step Solution

1. Step 1: Write the proportion equation
   9,047,866 : 19,721,492 = 19,721,492 : x
2. Step 2: Convert to fraction form
   9,047,866/19,721,492 = 19,721,492/x
3. Step 3: Cross multiply
   9,047,866x = 19,721,492 × 19,721,492
4. Step 4: Simplify right side
   9,047,866x = 388,937,246,706,064
5. Step 5: Solve for x
   x = 388,937,246,706,064/9,047,866
6. Step 6: Final answer
   x = 42,986,627.64