Finding the Third Proportional to 19,140,387 and 42,000,828

Step by Step Solution

1. Step 1: Write the proportion equation
   19,140,387 : 42,000,828 = 42,000,828 : x
2. Step 2: Convert to fraction form
   19,140,387/42,000,828 = 42,000,828/x
3. Step 3: Cross multiply
   19,140,387x = 42,000,828 × 42,000,828
4. Step 4: Simplify right side
   19,140,387x = 1,764,069,552,685,584
5. Step 5: Solve for x
   x = 1,764,069,552,685,584/19,140,387
6. Step 6: Final answer
   x = 92,164,779.78