Finding the Third Proportional to 19,876,824.75 and 42,045,420

Step by Step Solution

1. Step 1: Write the proportion equation
   19,876,824.75 : 42,045,420 = 42,045,420 : x
2. Step 2: Convert to fraction form
   19,876,824.75/42,045,420 = 42,045,420/x
3. Step 3: Cross multiply
   19,876,824.75x = 42,045,420 × 42,045,420
4. Step 4: Simplify right side
   19,876,824.75x = 1,767,817,342,976,400
5. Step 5: Solve for x
   x = 1,767,817,342,976,400/19,876,824.75
6. Step 6: Final answer
   x = 88,938,618.98