Finding the Third Proportional to 19,465,881 and 42,009,478

Step by Step Solution

1. Step 1: Write the proportion equation
   19,465,881 : 42,009,478 = 42,009,478 : x
2. Step 2: Convert to fraction form
   19,465,881/42,009,478 = 42,009,478/x
3. Step 3: Cross multiply
   19,465,881x = 42,009,478 × 42,009,478
4. Step 4: Simplify right side
   19,465,881x = 1,764,796,241,832,484
5. Step 5: Solve for x
   x = 1,764,796,241,832,484/19,465,881
6. Step 6: Final answer
   x = 90,661,000.23