Finding the Third Proportional to 19,900,224 and 42,191,928

Step by Step Solution

1. Step 1: Write the proportion equation
   19,900,224 : 42,191,928 = 42,191,928 : x
2. Step 2: Convert to fraction form
   19,900,224/42,191,928 = 42,191,928/x
3. Step 3: Cross multiply
   19,900,224x = 42,191,928 × 42,191,928
4. Step 4: Simplify right side
   19,900,224x = 1,780,158,788,357,184
5. Step 5: Solve for x
   x = 1,780,158,788,357,184/19,900,224
6. Step 6: Final answer
   x = 89,454,208.57