Finding the Third Proportional to 20,602,839 and 42,901,206

Step by Step Solution

1. Step 1: Write the proportion equation
   20,602,839 : 42,901,206 = 42,901,206 : x
2. Step 2: Convert to fraction form
   20,602,839/42,901,206 = 42,901,206/x
3. Step 3: Cross multiply
   20,602,839x = 42,901,206 × 42,901,206
4. Step 4: Simplify right side
   20,602,839x = 1,840,513,476,254,436
5. Step 5: Solve for x
   x = 1,840,513,476,254,436/20,602,839
6. Step 6: Final answer
   x = 89,333,002.91