Finding the Third Proportional to 9,139,547,242 and 19,901,633,466

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,547,242 : 19,901,633,466 = 19,901,633,466 : x
2. Step 2: Convert to fraction form
   9,139,547,242/19,901,633,466 = 19,901,633,466/x
3. Step 3: Cross multiply
   9,139,547,242x = 19,901,633,466 × 19,901,633,466
4. Step 4: Simplify right side
   9,139,547,242x = 396,075,014,615,011,164,160
5. Step 5: Solve for x
   x = 396,075,014,615,011,164,160/9,139,547,242
6. Step 6: Final answer
   x = 43,336,393,382.25