Finding the Third Proportional to 19,580,836 and 42,415,980

Step by Step Solution

1. Step 1: Write the proportion equation
   19,580,836 : 42,415,980 = 42,415,980 : x
2. Step 2: Convert to fraction form
   19,580,836/42,415,980 = 42,415,980/x
3. Step 3: Cross multiply
   19,580,836x = 42,415,980 × 42,415,980
4. Step 4: Simplify right side
   19,580,836x = 1,799,115,359,360,400
5. Step 5: Solve for x
   x = 1,799,115,359,360,400/19,580,836
6. Step 6: Final answer
   x = 91,881,437.51