Finding the Third Proportional to 19,690,979,776 and 42,368,460,251

Step by Step Solution

1. Step 1: Write the proportion equation
   19,690,979,776 : 42,368,460,251 = 42,368,460,251 : x
2. Step 2: Convert to fraction form
   19,690,979,776/42,368,460,251 = 42,368,460,251/x
3. Step 3: Cross multiply
   19,690,979,776x = 42,368,460,251 × 42,368,460,251
4. Step 4: Simplify right side
   19,690,979,776x = 1,795,086,424,040,566,947,840
5. Step 5: Solve for x
   x = 1,795,086,424,040,566,947,840/19,690,979,776
6. Step 6: Final answer
   x = 91,162,879,880.08