Finding the Third Proportional to 19,414,830 and 42,129,804

Step by Step Solution

1. Step 1: Write the proportion equation
   19,414,830 : 42,129,804 = 42,129,804 : x
2. Step 2: Convert to fraction form
   19,414,830/42,129,804 = 42,129,804/x
3. Step 3: Cross multiply
   19,414,830x = 42,129,804 × 42,129,804
4. Step 4: Simplify right side
   19,414,830x = 1,774,920,385,078,416
5. Step 5: Solve for x
   x = 1,774,920,385,078,416/19,414,830
6. Step 6: Final answer
   x = 91,420,856.38