Finding the Third Proportional to 58,977,997,294 and 129,977,588,663

Step by Step Solution

1. Step 1: Write the proportion equation
   58,977,997,294 : 129,977,588,663 = 129,977,588,663 : x
2. Step 2: Convert to fraction form
   58,977,997,294/129,977,588,663 = 129,977,588,663/x
3. Step 3: Cross multiply
   58,977,997,294x = 129,977,588,663 × 129,977,588,663
4. Step 4: Simplify right side
   58,977,997,294x = 16,894,173,554,648,025,137,152
5. Step 5: Solve for x
   x = 16,894,173,554,648,025,137,152/58,977,997,294
6. Step 6: Final answer
   x = 286,448,749,190.86