Finding the Third Proportional to 9,139,547,248 and 19,901,633,480

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,547,248 : 19,901,633,480 = 19,901,633,480 : x
2. Step 2: Convert to fraction form
   9,139,547,248/19,901,633,480 = 19,901,633,480/x
3. Step 3: Cross multiply
   9,139,547,248x = 19,901,633,480 × 19,901,633,480
4. Step 4: Simplify right side
   9,139,547,248x = 396,075,015,172,256,890,880
5. Step 5: Solve for x
   x = 396,075,015,172,256,890,880/9,139,547,248
6. Step 6: Final answer
   x = 43,336,393,414.78