Finding the Third Proportional to 19,435,900 and 42,521,840

Step by Step Solution

1. Step 1: Write the proportion equation
   19,435,900 : 42,521,840 = 42,521,840 : x
2. Step 2: Convert to fraction form
   19,435,900/42,521,840 = 42,521,840/x
3. Step 3: Cross multiply
   19,435,900x = 42,521,840 × 42,521,840
4. Step 4: Simplify right side
   19,435,900x = 1,808,106,876,985,600
5. Step 5: Solve for x
   x = 1,808,106,876,985,600/19,435,900
6. Step 6: Final answer
   x = 93,029,233.38