Finding the Third Proportional to 106,677 and 216,421.88

Step by Step Solution

1. Step 1: Write the proportion equation
   106,677 : 216,421.88 = 216,421.88 : x
2. Step 2: Convert to fraction form
   106,677/216,421.88 = 216,421.88/x
3. Step 3: Cross multiply
   106,677x = 216,421.88 × 216,421.88
4. Step 4: Simplify right side
   106,677x = 46,838,427,978.52
5. Step 5: Solve for x
   x = 46,838,427,978.52/106,677
6. Step 6: Final answer
   x = 439,067.73