Finding the Third Proportional to 12,909,220 and 27,810,156

Step by Step Solution

1. Step 1: Write the proportion equation
   12,909,220 : 27,810,156 = 27,810,156 : x
2. Step 2: Convert to fraction form
   12,909,220/27,810,156 = 27,810,156/x
3. Step 3: Cross multiply
   12,909,220x = 27,810,156 × 27,810,156
4. Step 4: Simplify right side
   12,909,220x = 773,404,776,744,336
5. Step 5: Solve for x
   x = 773,404,776,744,336/12,909,220
6. Step 6: Final answer
   x = 59,911,038.52