Finding the Third Proportional to 27,908,473,978 and 42,897,249,447

Step by Step Solution

1. Step 1: Write the proportion equation
   27,908,473,978 : 42,897,249,447 = 42,897,249,447 : x
2. Step 2: Convert to fraction form
   27,908,473,978/42,897,249,447 = 42,897,249,447/x
3. Step 3: Cross multiply
   27,908,473,978x = 42,897,249,447 × 42,897,249,447
4. Step 4: Simplify right side
   27,908,473,978x = 1,840,174,010,118,141,902,848
5. Step 5: Solve for x
   x = 1,840,174,010,118,141,902,848/27,908,473,978
6. Step 6: Final answer
   x = 65,936,031,169.91