Finding the Third Proportional to 19,683,144 and 42,947,946

Step by Step Solution

1. Step 1: Write the proportion equation
   19,683,144 : 42,947,946 = 42,947,946 : x
2. Step 2: Convert to fraction form
   19,683,144/42,947,946 = 42,947,946/x
3. Step 3: Cross multiply
   19,683,144x = 42,947,946 × 42,947,946
4. Step 4: Simplify right side
   19,683,144x = 1,844,526,065,618,916
5. Step 5: Solve for x
   x = 1,844,526,065,618,916/19,683,144
6. Step 6: Final answer
   x = 93,710,947.07