Finding the Third Proportional to 67,896,800 and 138,931,216

Step by Step Solution

1. Step 1: Write the proportion equation
   67,896,800 : 138,931,216 = 138,931,216 : x
2. Step 2: Convert to fraction form
   67,896,800/138,931,216 = 138,931,216/x
3. Step 3: Cross multiply
   67,896,800x = 138,931,216 × 138,931,216
4. Step 4: Simplify right side
   67,896,800x = 19,301,882,779,238,656
5. Step 5: Solve for x
   x = 19,301,882,779,238,656/67,896,800
6. Step 6: Final answer
   x = 284,282,658.08