Finding the Third Proportional to 5,902,439.63 and 8,684,875.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,902,439.63 : 8,684,875.69 = 8,684,875.69 : x
2. Step 2: Convert to fraction form
   5,902,439.63/8,684,875.69 = 8,684,875.69/x
3. Step 3: Cross multiply
   5,902,439.63x = 8,684,875.69 × 8,684,875.69
4. Step 4: Simplify right side
   5,902,439.63x = 75,427,065,707,328.59
5. Step 5: Solve for x
   x = 75,427,065,707,328.59/5,902,439.63
6. Step 6: Final answer
   x = 12,778,964.38