Finding the Third Proportional to 1,178,680 and 2,545,172

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,680 : 2,545,172 = 2,545,172 : x
2. Step 2: Convert to fraction form
   1,178,680/2,545,172 = 2,545,172/x
3. Step 3: Cross multiply
   1,178,680x = 2,545,172 × 2,545,172
4. Step 4: Simplify right side
   1,178,680x = 6,477,900,509,584
5. Step 5: Solve for x
   x = 6,477,900,509,584/1,178,680
6. Step 6: Final answer
   x = 5,495,894.14