Finding the Third Proportional to 19,876,757.25 and 42,045,240

Step by Step Solution

1. Step 1: Write the proportion equation
   19,876,757.25 : 42,045,240 = 42,045,240 : x
2. Step 2: Convert to fraction form
   19,876,757.25/42,045,240 = 42,045,240/x
3. Step 3: Cross multiply
   19,876,757.25x = 42,045,240 × 42,045,240
4. Step 4: Simplify right side
   19,876,757.25x = 1,767,802,206,657,600
5. Step 5: Solve for x
   x = 1,767,802,206,657,600/19,876,757.25
6. Step 6: Final answer
   x = 88,938,159.50