Finding the Third Proportional to 9,047,864 and 19,721,488

Step by Step Solution

1. Step 1: Write the proportion equation
   9,047,864 : 19,721,488 = 19,721,488 : x
2. Step 2: Convert to fraction form
   9,047,864/19,721,488 = 19,721,488/x
3. Step 3: Cross multiply
   9,047,864x = 19,721,488 × 19,721,488
4. Step 4: Simplify right side
   9,047,864x = 388,937,088,934,144
5. Step 5: Solve for x
   x = 388,937,088,934,144/9,047,864
6. Step 6: Final answer
   x = 42,986,619.71