Finding the Third Proportional to 13,142,658 and 28,807,405

Step by Step Solution

1. Step 1: Write the proportion equation
   13,142,658 : 28,807,405 = 28,807,405 : x
2. Step 2: Convert to fraction form
   13,142,658/28,807,405 = 28,807,405/x
3. Step 3: Cross multiply
   13,142,658x = 28,807,405 × 28,807,405
4. Step 4: Simplify right side
   13,142,658x = 829,866,582,834,025
5. Step 5: Solve for x
   x = 829,866,582,834,025/13,142,658
6. Step 6: Final answer
   x = 63,142,979.36