Finding the Third Proportional to 12,645,532 and 29,841,570

Step by Step Solution

1. Step 1: Write the proportion equation
   12,645,532 : 29,841,570 = 29,841,570 : x
2. Step 2: Convert to fraction form
   12,645,532/29,841,570 = 29,841,570/x
3. Step 3: Cross multiply
   12,645,532x = 29,841,570 × 29,841,570
4. Step 4: Simplify right side
   12,645,532x = 890,519,300,064,900
5. Step 5: Solve for x
   x = 890,519,300,064,900/12,645,532
6. Step 6: Final answer
   x = 70,421,655.65