Finding the Third Proportional to 59,900,428.50 and 85,599,099

Step by Step Solution

1. Step 1: Write the proportion equation
   59,900,428.50 : 85,599,099 = 85,599,099 : x
2. Step 2: Convert to fraction form
   59,900,428.50/85,599,099 = 85,599,099/x
3. Step 3: Cross multiply
   59,900,428.50x = 85,599,099 × 85,599,099
4. Step 4: Simplify right side
   59,900,428.50x = 7,327,205,749,611,801
5. Step 5: Solve for x
   x = 7,327,205,749,611,801/59,900,428.50
6. Step 6: Final answer
   x = 122,323,094.06