Finding the Third Proportional to 67,897,388,472 and 142,830,996,726

Step by Step Solution

1. Step 1: Write the proportion equation
   67,897,388,472 : 142,830,996,726 = 142,830,996,726 : x
2. Step 2: Convert to fraction form
   67,897,388,472/142,830,996,726 = 142,830,996,726/x
3. Step 3: Cross multiply
   67,897,388,472x = 142,830,996,726 × 142,830,996,726
4. Step 4: Simplify right side
   67,897,388,472x = 20,400,693,625,742,621,147,136
5. Step 5: Solve for x
   x = 20,400,693,625,742,621,147,136/67,897,388,472
6. Step 6: Final answer
   x = 300,463,597,862.17