Finding the Third Proportional to 9,139,547,240 and 19,901,633,462

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,547,240 : 19,901,633,462 = 19,901,633,462 : x
2. Step 2: Convert to fraction form
   9,139,547,240/19,901,633,462 = 19,901,633,462/x
3. Step 3: Cross multiply
   9,139,547,240x = 19,901,633,462 × 19,901,633,462
4. Step 4: Simplify right side
   9,139,547,240x = 396,075,014,455,798,136,832
5. Step 5: Solve for x
   x = 396,075,014,455,798,136,832/9,139,547,240
6. Step 6: Final answer
   x = 43,336,393,374.32