Finding the Third Proportional to 19,580,814 and 42,415,938

Step by Step Solution

1. Step 1: Write the proportion equation
   19,580,814 : 42,415,938 = 42,415,938 : x
2. Step 2: Convert to fraction form
   19,580,814/42,415,938 = 42,415,938/x
3. Step 3: Cross multiply
   19,580,814x = 42,415,938 × 42,415,938
4. Step 4: Simplify right side
   19,580,814x = 1,799,111,796,419,844
5. Step 5: Solve for x
   x = 1,799,111,796,419,844/19,580,814
6. Step 6: Final answer
   x = 91,881,358.78