Finding the Third Proportional to 20,874,602 and 42,336,148

Step by Step Solution

1. Step 1: Write the proportion equation
   20,874,602 : 42,336,148 = 42,336,148 : x
2. Step 2: Convert to fraction form
   20,874,602/42,336,148 = 42,336,148/x
3. Step 3: Cross multiply
   20,874,602x = 42,336,148 × 42,336,148
4. Step 4: Simplify right side
   20,874,602x = 1,792,349,427,477,904
5. Step 5: Solve for x
   x = 1,792,349,427,477,904/20,874,602
6. Step 6: Final answer
   x = 85,862,687.46