Finding the Third Proportional to 59,902,698 and 85,602,513

Step by Step Solution

1. Step 1: Write the proportion equation
   59,902,698 : 85,602,513 = 85,602,513 : x
2. Step 2: Convert to fraction form
   59,902,698/85,602,513 = 85,602,513/x
3. Step 3: Cross multiply
   59,902,698x = 85,602,513 × 85,602,513
4. Step 4: Simplify right side
   59,902,698x = 7,327,790,231,915,169
5. Step 5: Solve for x
   x = 7,327,790,231,915,169/59,902,698
6. Step 6: Final answer
   x = 122,328,216.87