Finding the Third Proportional to 28,071,858 and 42,315,153

Step by Step Solution

1. Step 1: Write the proportion equation
   28,071,858 : 42,315,153 = 42,315,153 : x
2. Step 2: Convert to fraction form
   28,071,858/42,315,153 = 42,315,153/x
3. Step 3: Cross multiply
   28,071,858x = 42,315,153 × 42,315,153
4. Step 4: Simplify right side
   28,071,858x = 1,790,572,173,413,409
5. Step 5: Solve for x
   x = 1,790,572,173,413,409/28,071,858
6. Step 6: Final answer
   x = 63,785,310.31