Finding the Third Proportional to 19,428,300.75 and 42,134,649.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,428,300.75 : 42,134,649.75 = 42,134,649.75 : x
2. Step 2: Convert to fraction form
   19,428,300.75/42,134,649.75 = 42,134,649.75/x
3. Step 3: Cross multiply
   19,428,300.75x = 42,134,649.75 × 42,134,649.75
4. Step 4: Simplify right side
   19,428,300.75x = 1,775,328,709,555,175
5. Step 5: Solve for x
   x = 1,775,328,709,555,175/19,428,300.75
6. Step 6: Final answer
   x = 91,378,486.08