Finding the Third Proportional to 11,643,391,530 and 25,326,825,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,643,391,530 : 25,326,825,637.50 = 25,326,825,637.50 : x
2. Step 2: Convert to fraction form
   11,643,391,530/25,326,825,637.50 = 25,326,825,637.50/x
3. Step 3: Cross multiply
   11,643,391,530x = 25,326,825,637.50 × 25,326,825,637.50
4. Step 4: Simplify right side
   11,643,391,530x = 641,448,096,872,327,282,688
5. Step 5: Solve for x
   x = 641,448,096,872,327,282,688/11,643,391,530
6. Step 6: Final answer
   x = 55,091,172,981.65