Finding the Third Proportional to 27,721,680 and 42,665,064

Step by Step Solution

1. Step 1: Write the proportion equation
   27,721,680 : 42,665,064 = 42,665,064 : x
2. Step 2: Convert to fraction form
   27,721,680/42,665,064 = 42,665,064/x
3. Step 3: Cross multiply
   27,721,680x = 42,665,064 × 42,665,064
4. Step 4: Simplify right side
   27,721,680x = 1,820,307,686,124,096
5. Step 5: Solve for x
   x = 1,820,307,686,124,096/27,721,680
6. Step 6: Final answer
   x = 65,663,685.83