Finding the Third Proportional to 9,047,772 and 19,721,340

Step by Step Solution

1. Step 1: Write the proportion equation
   9,047,772 : 19,721,340 = 19,721,340 : x
2. Step 2: Convert to fraction form
   9,047,772/19,721,340 = 19,721,340/x
3. Step 3: Cross multiply
   9,047,772x = 19,721,340 × 19,721,340
4. Step 4: Simplify right side
   9,047,772x = 388,931,251,395,600
5. Step 5: Solve for x
   x = 388,931,251,395,600/9,047,772
6. Step 6: Final answer
   x = 42,986,411.62