Finding the Third Proportional to 19,666,809 and 42,920,082

Step by Step Solution

1. Step 1: Write the proportion equation
   19,666,809 : 42,920,082 = 42,920,082 : x
2. Step 2: Convert to fraction form
   19,666,809/42,920,082 = 42,920,082/x
3. Step 3: Cross multiply
   19,666,809x = 42,920,082 × 42,920,082
4. Step 4: Simplify right side
   19,666,809x = 1,842,133,438,886,724
5. Step 5: Solve for x
   x = 1,842,133,438,886,724/19,666,809
6. Step 6: Final answer
   x = 93,667,124.08