Finding the Third Proportional to 31,103,620 and 67,867,196

Step by Step Solution

1. Step 1: Write the proportion equation
   31,103,620 : 67,867,196 = 67,867,196 : x
2. Step 2: Convert to fraction form
   31,103,620/67,867,196 = 67,867,196/x
3. Step 3: Cross multiply
   31,103,620x = 67,867,196 × 67,867,196
4. Step 4: Simplify right side
   31,103,620x = 4,605,956,292,902,416
5. Step 5: Solve for x
   x = 4,605,956,292,902,416/31,103,620
6. Step 6: Final answer
   x = 148,084,251.70